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Fertility Facts: Sperm Regeneration

sperm takes 74 days to matureThe sperm regeneration cycle takes about 74 days.

It is generally known that most men produce millions of new sperm every day. However, you might not know that these new sperm take about 2 ½ – 3 months to fully mature or that when sperm are initially formed they lack the ability to swim forward or fertilize an egg.

Sperm are living cells within the male body and are subject to whatever conditions the rest of the body is exposed to throughout their maturation cycle. Extreme temperatures, smoking, drug use and poor diet can all impact the quality of sperm. For this reason, men looking to increase the chances of conception may make lifestyle changes. It is important to keep in mind that healthy sperm will not be ready to fertilize an egg until the new batch of sperm, developed under the healthier conditions, is mature. Meaning, after making a lifestyle change, it is recommended to wait about 3 months before trying to conceive.

When considering conception, it is also important to try to find the best sperm available to reach and fertilize the egg. In this effort, it is recommended that men abstain from ejaculating for 2 to 3 days. Men that are ejaculating more often show signs of a decreased sperm count. This rule goes for couples who are trying to conceive on their own as well as men that are producing a semen sample for fertility treatments, such as IUI or IVF.


  1. Stan

    May 31, 2013 - 1:12 pm

    Please is it possible to know when the produced sperms are matured? Or how can the life cycle be calculated?

  2. Shady Grove Fertility

    May 31, 2013 - 3:52 pm

    Hi Stan – The sperm mature at the end of this process, approximately 2.5-3 months. Life cycle has been calculated during studies where trauma and other variables done. You can see that sperm produced after the event would no longer show signs of the trauma.

  3. Nicole

    September 26, 2013 - 12:14 am

    Hello! My husband had a second vasectomy reversal done in June. The first reversal was performed in 2010 and was successful at first. 6months post surgery pulled vas apart on the left and scarred over on the right leaving us unable to conceive. We had our first SA done in August and the count was extremely low, 1.2 million. Thankful to be blessed with a count, but hopeful for stronger numbers and that the vas does not pull apart and scar over again. Is this normal as far as a count goes post reversal? Or should we be concerned? Thanks!

    • FFJr

      December 13, 2013 - 2:56 am

      I was disappointed with the same occurrence. Three months post reversal, a SC came out normal at 30mil… 6 Months after trying to conceive I went for a 2nd SA and Z E R O… :( I’m on Anti Inflammatory meds now and praying it was a scar tissue problem and that the meds open me back up. Very disappointing

    • Jeff

      September 8, 2017 - 1:44 am

      How..what?? Why would you do that too your husband..TWO reversals!! He should divorce you. Better yet, you should get YOUR tubes tied. I honestly feel bad for your offspring, hopefully they will not do the same to theirs.

  4. kashif

    December 17, 2013 - 6:07 pm

    in how much days all mature sperm eliminates from body??

  5. hameed rehman

    July 24, 2014 - 9:21 pm

    i am suffering from all imotile sperms. Doctor is giving me anti inflamatory med due to renal infection. Before taking med, my right testicle was swelling. Now its ok. Sperm count is increasing but no single sperm moving. What is the reason. My last sperm count was
    1st 16 mil per ml 5 percent motile
    2nd 35 mil per ml zero motile
    3rd 39 mil per ml zero motile

  6. Vincent

    March 3, 2015 - 9:17 pm

    Attention, I mustabates like three times a day.is there any chance of impregnating women when am ready
    right now am 22 and wanna marry at 28.

    • lucas

      December 17, 2015 - 6:35 pm

      3 times a day…. man u def addicted to porn get some help or find a hobby

  7. Stella

    April 11, 2015 - 10:32 am

    Always take vitamin E and C (1000mg) everyday to improve your sperm count and motility

    • Richard

      November 7, 2017 - 8:52 pm

      Zinc and Folic acid are also very beneficial in increasing sperm quality and quantity… I had a reversal done in Sept of 2016 and my counts were consistently around 12-15 million for the first 8 months – I am up to 27 mil/ml in 3 months after taking the combination daily.

  8. Alhassan Sanusi

    May 2, 2015 - 2:05 pm

    I was someone who used to have sex very frequently and now I have my semen very watery and light from the normal semen. I am scared of what might the problem. Could lead to low sperm counts or make me infertile. Could this also means that my sperm bank is empty. Am confused here so please help me out. Thanks.

    • Xxxx

      February 21, 2017 - 12:17 pm

      Same problem …if you know the remedy please answer me

    • BobTrent

      September 22, 2017 - 2:42 am

      There is no “sperm bank.” Sperms are produced continually, tens of millions a day. Unless something goes wrong, like got castrated or x-radiation on your balls, your last sperm is produced shortly after you die.

  9. sam

    May 18, 2015 - 6:59 am


    its cmmn to all

  10. Some Wise Guy

    May 31, 2015 - 10:00 pm

    “Extreme temperatures, smoking, drug use and poor diet can all impact the quality of sperm.”

    As i remember, under this exact condition, my sperm fertilized an egg many many many times..

  11. Prince Boadu

    June 9, 2015 - 7:25 am

    After 3 years of masturbation in the teenage,can a man still have a woman conceived?

    • Shady Grove Fertility

      June 9, 2015 - 12:11 pm

      Of course – masturbation is completely normal and should have no impact on one’s ability to conceive with your partner.

      • Unknown

        November 30, 2017 - 11:08 pm

        Masturbation is NOT normal and is wrong.

        • Arron Ecker

          December 2, 2017 - 9:42 am

          You are an idiot for stating this. Masturbation is completely normal and if you do not masturbate then you are either suppressing something or you have some form of a hormonal imbalance and I recommend you see your doctor.

  12. Kunle

    June 15, 2015 - 9:18 am

    Pls, i need a clarification. You said said it takes 2.5-3 months for sperms to mature. Does that mean sperms must mature before it can ejaculated out. In other words, is all ejaculated sperms matured?

    • Shady Grove Fertility

      June 15, 2015 - 12:22 pm

      Hi Kunle – Yes, all sperm remain in the epididymis for this time to mature. That isn’t to say all ejaculated sperm are normal and can produce a healthy pregnancy. But taking steps to improve lifestyle can go a long way to increasing the volume and proportion of normal mature sperm that are ejaculated.

      • Nelson

        July 24, 2017 - 11:04 am

        Please expanciate more on kunle’s question, it’s still not clear to me. Does it mean men with olygospermia have to abstain for 3 month to help get matured sperm? Since the sperm count is low does it mean men with olygospermia should wait for months for enough sperm to mature and build in numbers before being more sexually active?

  13. Cindy las vegas

    June 25, 2015 - 7:06 pm

    Yes my boyfriend had not had an erection in 8 years he can use a pump and rings to maintain an erection but he has also not produced any semen in the last 8 years is it possible to start producing semen again he is type 1 diabetic and he did just have a kidney transplant

  14. Tmoney

    August 1, 2015 - 4:53 pm

    Hi,i was diagnosed with no sperm count about a month,my wife and I have een hoping to conceive and bear children,is there a way that i can treat myself and produce sperm cells,what kind of drugs can you prescribe for sperm cell production.

    • Charlie

      July 12, 2017 - 10:37 pm

      Sharing my experience. Married since 3 years. I decided to join army, so that I can leave behind a decent life for my wife if anything happens to me.
      I went to BCT. 3 months of high physical activities, good diet, fruits, milk etc. Lot of water everyday. There was no time to masturbate.
      After coming back home, we decided to have sex during her peak time.
      My sperm usually was less thick and less white but this time it was whole different. It was so thick and much in quantity compared to all other time. It was similar to what I used to have during teenage time.

      So my suggestion improve ur diet milk water fruits and less carb. Exercise and gather sperm inside for couple of weeks if anyone is suffering from low count.

      This is hard, need patience, but may work

  15. Chris

    August 10, 2015 - 12:40 pm

    After having intercourse earlyer in the day I a 27 year old male went to have intercourse again I reached climax but no fluids came out I’m trying to figure out approximately how long it should take for my body to start ejaculating fluids again because me and my wonderful girlfriend are trying to conceive and this has me terribly worried please help also what if any illegal narcotics can cause this becUae I smoke lots of pot please help me figure this out before I go even further off the deep end thank u any and all who have advice that is valid

  16. Wayne

    September 2, 2015 - 3:57 pm

    Okay so it takes sperm approximately 74 days to mature. What I’m not getting is that am I supposed to wait that long? Because other articles state that after a week with no ejaculation, it can affect sperm motility. And it takes approximately 36 hours for a man to replenish sperm after ejaculation. So if I’m having sex every 36 hours, how does that give my sperm a chance to mature.

    • Shady Grove Fertility

      September 2, 2015 - 4:15 pm

      Hi Wayne – Great question.
      You certainly don’t have to abstain from intercourse for 74 days! The sperm maturation is a process. In the body, at the same time, you will have immature sperm that are brand new that will gradually mature over the next couple of months as well as fully mature sperm. The idea would be to abstain for a few days (based on your doctors recommendation) to build up enough mature sperm in your ejaculate to determine a sperm count and motility. In the case of intercourse or ejaculating to use for fertility treatment, the goal is to get enough mature sperm in the sample to increase the chances of fertilization.
      Hope this clarifies things!

  17. Taiwo

    September 13, 2015 - 2:22 pm

    Thanks Shady Grove.

    I have been following your responses. Correct me if I understand your reply to Waynes enquiries as “ejaculation or frequent sex within the 74 days window for sperm to mature will not affect the process”.

    Also I hear zinc supplements or foods high in zinc like Oysters are the way to go to improve quality, motility and mobility of these swimmers.

  18. Nia

    September 21, 2015 - 10:18 pm

    My husband took a sperm analysis which resulted in a low sperm count, can he improve his sperm count by taking Selenium and prenatal vitamins?

  19. Dylan

    October 12, 2015 - 4:11 am

    Yes I’m 13 and I really need to know when sperm fertilizes

  20. Alex

    October 17, 2015 - 10:22 am


    We had IUI done and the first round my spouse’s sperm count was very high, in the area of 190 million. The next month and a half or so his count was 93 million for the second round. Is it normal to have such a drastically different sperm count within the span of a month and a half?

    • Shady Grove Fertility

      October 21, 2015 - 12:48 pm

      Hi Alex – It isn’t uncommon to have drastic changes in sperm quality or count from one test to the next, which is why you have a preliminary semen analysis, but the sample used for an IUI or IVF treatment cycle gets tested again. There are many factors that can swing the count, including changes to lifestyle and last ejaculation. Although likely nothing is wrong, you may want to talk with your nurse or physician to ensure that your husband is doing what he can to optimize his sample.

  21. godswill

    November 15, 2015 - 8:49 am

    How does having sex affects broken bone and does having sex once a week affect your 74 days for getting mature sperm?

  22. Henry Etowa

    December 9, 2015 - 1:56 pm

    Can i be receiving mails Shady Grove Fertility

  23. Andrew

    December 15, 2015 - 1:53 am

    If I stop smoking and start taking supplements, can I improve sperm quality already in production, so to be ready in 1-2 months?

  24. yakubu

    January 2, 2016 - 11:39 pm

    help me to get my wife concieve
    .we lost ur pregnancy since
    may 2015.n we are tring our best bur it yeild nothing.

  25. Adil Basheer

    January 3, 2016 - 8:29 am

    Hi, I am very overweight and have some poor semen figures. If I star changing my lifestyle today and my diet will it take three months from now for my sperm to get better or three months from when I lose a significant amount of weight? Also I hear conflicting things on how often you should have sex during ovulation and outside some say every day others say every other please clarify. Thanks.

  26. Ben

    February 17, 2016 - 11:16 pm

    Hello Please help if you can!
    My wife and I are trying to have our second baby. We were going to start trying tonight but we had a small incident where our microwave caught fire while we were out, not in use just wiring issue that caught the wires on fire. I went in when the house had smoke and realized the microwave had partially melted from heat. So I inhaled some smoke and air born plastics from the melted microwave, not sure if this effects the sperm. It was brief maybe 5-10 minutes, my throat and eyes burned a little but it wasn’t a really thick smoke.

    Should we wait the 74 days until the sperm is regenerated or are we being over catious. Thanks in advance!

  27. braveheart

    March 6, 2016 - 6:24 pm

    hello, im 30 years and have been masturbating since my teens( past 14 years i guess ) recent semen analysis (twice )showed azoospermia. if there are immature sperms in semen,does that also mean azoospermia? should i abstain from ejaculation for 74 days to get the count back? im realy scared.

  28. Smith

    April 14, 2016 - 7:52 am

    Pls sir i realy need your help becos this has being disturbing me 4 a long time now. I am 25yrs old most times when i sleep at night i do ejaculate without any sexual intercourse i do realise i ejaculated only wen i woke up please sir do i have weak sperm or what is the problem?

    • Chris

      June 18, 2016 - 9:02 am

      U got some kind of nervous system failure search through Internet you’ll definitely get some solution don’t get scared

    • re chris

      December 8, 2016 - 8:00 am

      i dont think chris is correct about nervous system failure. but i could be wrong. it sounds to me like A nocturnal emission, informally known as a wet dream, is a spontaneous orgasm during sleep that includes ejaculation for a male, or vaginal wetness or an orgasm (or both) for a female. Nocturnal emissions are most common during adolescence and early young adult years, but they may happen any time after puberty. It is possible for men to wake up during a wet dream or simply to sleep through it. hope this info helps. dont dismiss the idea from chris he may know what he is talking about i am no expert

  29. ShallowHal

    April 28, 2016 - 3:35 pm

    Yo, so, here’s a decent question regarding accounts of multiple ejaculates, sperm counts and the like.

    Prior to last night, I have ejaculated at least once a day, consistently mind you, for about a week or so and last night with my fiancée, I accidently came inside of her.
    The last time I ejaculated. There was very little content as I had dome it earlier that day anyways, then when I got home from work we repeated the act.
    I’m wondering the chances of pregnancy of that minute ammount, her being on top, and how low the count in a batch would be and if she would get pregnant? We aren’t exactly trying, but we’ll I’m worried something will happen.

    • umeshsohaliya

      May 3, 2016 - 11:38 am

      Dear ShallowHal only one mature sperm is enough to fertilize an egg. so there is lacks of chance of pregnancy if you aren’t ready for that you have to take pregnancy prevention steps.

  30. spring

    May 3, 2016 - 7:13 pm

    I am young guy my age is 27 but I have a problem that I am dping ejaculate on daily basis. So what is the effects for this..

  31. John

    May 22, 2016 - 10:11 am

    Can I get a girl pregnant with sperm that’s 2 or 3 days old

  32. Lo Soh

    May 25, 2016 - 3:46 am

    Shady Grove Fertility, please answer my questions:
    1. After 46 years old, I discover that my urge to have sex drop to once every 2 weeks instead of 2-3 times a week. Is this due to my sperm reproduction?
    2. The penis is not as hard as in the past and cannot maintain for 5 mins. I nowadays sleeping at 1 am instead of before 12 midnight in the past.
    3. Viagra and Cialis do not help. Any natural remedy? I’m taking Prepionyl-L-Carnitine 2g twice a day.

  33. Shadow1228

    May 31, 2016 - 12:03 pm

    I am learning about this in school at JTC in Mandurah .

  34. Akshith

    June 12, 2016 - 10:00 am

    Is masturbation in teenage a bad practice… should I stop it to have a better future. Are there any side affects like hairfall,etc.

    • Abc

      November 6, 2016 - 3:41 pm

      Yes, masturbation has many side effects. Stop it as soon as possible.

  35. Jordan hutkai

    June 25, 2016 - 10:53 am

    I have sex everyday can I be making myself infertile ???

  36. Joel

    July 8, 2016 - 1:43 am

    Me and my wife have sex like everyday because we are trying to conceive, will this decrease my sperm count

  37. Chris

    July 15, 2016 - 10:21 am

    Hi shadygrovefertility

    I have a question…you mentioned it takes about 72 days for sperm to mature… if I have frequent sex, all of my mature sperm will run out??? Do I have to wait 72 days without intercourse and then I will have fully mature sperms ?

  38. shivam rana

    August 1, 2016 - 7:37 am

    If one ejaculates a lot is there possibility that immature sperms are being ejaculated.if so how much time should one pause 2- 3 months?are sperms in vas deference mature and once there when do they come out

  39. Matt

    August 30, 2016 - 10:50 am

    I had a fertility test and showed 1% morphology (all other parameters normal). I believe this may well be down to long term use of painkillers (codeine phosphate 30/500mg, 2 per day, 5 days a week for 5 years plus) after a badly broken leg some years ago.
    I stopped taking them altogether 8 days ago to give myself and my wife the best chance of improving sperm morphology and, in turn, conceiving.
    Assuming that the codeine was the issue am I right in saying I should do a re-test after waiting for 2 days (for the last codeine to leave the system) + 74 days for a completely new, mature sperm supply that has not been affected by the painkillers?
    Any help or advice would be appreciated.

  40. Ben

    October 9, 2016 - 11:25 am

    so if I have sex more than once a day and or masturbate once to twice a week does this actually disperse any sperm in my system? I am kind of confused on the 2.5-3 maturing…does it reset every time you ejaculate? Does your body only disperse a certain amount of sperm per ejaculation???? I am the opposite of folks here… I do not want any pregnancy, but my partner decided she is all set with any sort of birth control.

  41. Mohammed Muzaffar

    October 26, 2016 - 8:21 pm

    I am Regular in masturbation daily thrice started from the age of 18. Now i am 28 years while masturbation i ejaculate but my sperm not coming out from penis or even pre-cum. This is almost same for past one month i am not cum. I check with internet giving different type of answers and i got fear now. Planning for marriage next year. Suggestion Needed.

    • Helper

      April 8, 2017 - 5:43 am

      Perhaps you could lower your masturbating practices until things change. Its Like trying to use a phone once the batterys dead, have to wait till it gets charged again, and that depends on your body type and conditions perhaps.

  42. Jiwanjot

    December 27, 2016 - 1:20 pm

    In year 2016, month Feb my wife was pregnant after pregnancy of six week , missed abortion occurred. So we lost.
    Then in june it was diagnosed that my kidneys are damaged. So on 28th July i had kidney transplant. Now after 5 month of transplant , i have done semen analysis, result come with count is too low to count. What should i do now? Please suggest.

  43. Chris

    February 4, 2017 - 9:46 pm

    Hi. I was about to start a cycle of Ostarine. Found out it might not good for sperm quality so I stopped after 4 days. We are trying to conceive now so do you think I am ok because of the 3 month period? Then after 3 months what is the likelihood that my sperm would have been affected by those 4 days? Any info would be great!

  44. Cathy

    March 15, 2017 - 8:32 am

    My husband was told he could not have kids. (*infertile- not sterile).

    I didn’t take that as an answer! So we did every trick in the book; took pills, (( both of us )), tracked my ovulation, and, oddly enough, what worked…. icing his balls!! (*30min a day). The heat his testes were producing was causing his infertility.

    • John

      October 2, 2017 - 9:43 pm

      Please how long did you do this (weeks/months) before it worked?

  45. Helper

    April 8, 2017 - 5:33 am

    @ muzaffar, I would suggest that you lower your masturbating practices.
    The less you ejaculate the more sperm will build up

  46. Vince

    April 12, 2017 - 9:36 am

    I have 0% sperm motility, and I have been without sex for the past 3 years every month due to trying to conceive,should I wait for 74days too maybe the sperm will regenerate

  47. Thiru

    April 15, 2017 - 2:42 pm

    I can 3 days once realease my sperm so that any problem will come me.

  48. Neil

    May 6, 2017 - 5:17 am

    Hello, I have a question and I would be greatful if it could be answered. Considering that i masturbate and ejaculate a couple of hours or so before having sex, given the understanding that you have provided regarding sperm maturation, would it imply that chances of getting my partner pregnant would be extremely low? Because of the sperms being newly produced and immature or something of the sort? Kindly reply.

    • Jim Henson

      October 24, 2017 - 4:37 am

      Neil, I am assuming that you masturbate prior to intercourse due to overexposure to pornography which results in a lack of sexual endurance with flesh and blood human females. While your pre-coitus explosions do release a bulk of mature spermatozoa, it’s not uncommon to release sperm after torturing your fuckstick like a Chinese prisoner-of-war that could theoretically impregnate the slob who is letting you enter her sacred garden. Stop jacking off and save your bone-chutney for your chick, bruh.

  49. Oscar Abugri

    July 17, 2017 - 12:30 am

    Thanks to shady grove fertility for this education for our reproductive health, i ejoyed all yours posts and it has open my eyes to live well and also to train others to live well. I want to plead to use this platform to create viewers awareness that in case of prolonged issue of reproduction, you can try supplements. My company deals with food supplement products for conditions relating to reproductive issues which helped millions concerning reproduction. Products which are good to boost men’s testosterone, improve libido etc. Tel. +233244084844. website: http://www.tiens.com

  50. Joel

    July 28, 2017 - 8:33 am

    Hello, I have a question: is male sperm regeneration cycle continuous or does it happen in discrete batches or stages (like for example, female ovulation cycle)?

    What I mean is: do all the stages of sperm production and maturing all happen at once for different “generations” of sperm, or is there some sort of accumulation and release of “batches” of sperm for the next stage of maturing, till they become fully mature and available for ejaculation?

    I tried to conceive for 8 months, my wife got all fertility tests OK, two consecutive sperm counts indicated lack or abnormally small count of motile sperm.
    I met with a doctor, he said that the semen samples could have belonged to the same cycle, even though the time span between the tests was 2 weeks.

    The doctor wasn’t friendly and refused to elaborate. Based on this input, I concluded that there are cycles, and once the cycle is over, a certain amount of sperm cells become available and are “spent” in ejaculations to a point when little or none remain till the next “batch” becomes ready and gets released into glands that produce semen.
    Am I mistaken in my understanding of the process?

    Your response will be very helpful!

  51. Kuni

    July 31, 2017 - 8:55 pm

    Where is the reference???? Where did you get the information from? So what you are saying is that once male ejaculate they can not make anyone pregnant until 74 days later?!?!?!?

    • Shady Grove Fertility

      August 1, 2017 - 11:32 am

      Males continuous produce sperm. At the same moment in which they have brand new sperm they have sperm that have several days and several weeks old. However, it takes approximately 74 days for those new sperm to reach maturation, developing the ability to swim and fertilize an egg.

      For men, the benefit of this continuous production cycle is that they are experiencing certain issues with fertility, they are able to make lifestyle changes, and relatively quickly may see an improvement.

  52. Sahil

    August 5, 2017 - 4:15 pm

    Hi, I wanted to say that after masturbation I feel little pain in knees and ankles. although I heard that masturbation has nothing to do with it. I used to masturbate more than 10 times in a month. but has been 5 years I have reduced to 2 times a month or in 3 months only once and yes I didn’t masturbate for about 7-8 months I tried ti stop as I found I feel pain from knees to my ankles,.. I do exercise and eat healthy too but still I feel… I asked doctors too, he also said, it first time I am hearing.. soon after masturbate I start feeling little pain. and it goes for about 15 hours to get normal again…

  53. Graham

    August 11, 2017 - 9:17 pm

    Apparently heavy drinking by a prospective father is associated not only with infertility, but also with risk for birth defects. If a drinker quits, does that risk decline after the new sperm form? Would it be wise for such a person to wait those 74 days before trying to conceive? And does the man’s age play any role? Thanks!

  54. Arijit

    August 19, 2017 - 3:34 pm

    I am 30 years old. I am have been ejaculating once a day sometime twice a day. Is it possible decrease my sperm.If it does how can we improve it

  55. kevin

    September 1, 2017 - 12:02 am

    I ejaculate two or three times a day some times. but even if I stay a month without the volume dose not increase. this worries me and I have Question for you

  56. shiva

    September 26, 2017 - 3:27 am

    Sir, after 3 masterbation does rest sperm has capacity to fertile an egg plss reply soon

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