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Testicles shapes and sizes: top facts

Balls, just like penises and vaginas, come in all kinds of shapes and sizes. Read on to find out what your testicles say about you!

Before we dive in, let’s talk about what balls actually do. A man’s testicles have two functions: to produce the important hormone testosterone and to make sperm – about 200 million a day!
But they can also tell you quite a bit about your health, and might even tell you what kind of father you are going to be!

  1. Average shape and size

    The average testicle is oval-shaped and 4x3x2 centimetres. That means 4 cm long, 3 cm wide, and 2 cm deep. That’s far more complicated math than simply measuring a penis, isn’t it? But don’t get out the ruler just now – variations are absolutely normal, and your testicles measurements might be completely different. That’s totally okay and doesn’t say anything about their ability to produce sperm and testosterone.   
    Some men have only one ball. That’s called monorchism.

  2. They are different sizes!

    Balls grow at the same rate, but most of the time, one keeps growing a bit more and for slightly longer than the other one. That’s why it’s absolutely normal that one testicle is slightly bigger than the other, or that it has a different shape.  
    Also, it’s common that one ball hangs a bit lower than the other. It’s believed that the reason behind this is that balls will take up less space if they are asymmetrical.  
    If your testicles get bigger once you have reached adulthood or you notice any swelling around them, you should see a doctor, as this could be a sign of medical issues.  
    Shrinking testicles are normal though, as you get older.

  3. Testicle enlargement

    Just as with penises, some men wonder whether they can make their testicles look bigger. Although size says little about function, it’s all about the looks. There are surgeries to make your balls bigger; do keep in mind, that, just as with penis enlargements, pills, ointments, and other potions are designed to make your wallet smaller, rather than your balls bigger.  

    Should you ever feel a bit self-conscious about the size of your balls, keep this in mind: men with slightly smaller testicles make better, more nurturing fathers, according to a 2013 study.

  4. Brrr, cold

    Most men are very familiar with this: when it’s cold outside, or when they get into cold water, their testicles seem to shrink. There’s even a scientific term for it: cremasteric reaction. The body does that to keep the balls warm, which keeps sperm production steady.  
    Ideally, the temperature of your balls should be a bit cooler than your body temperature – that’s why they hang away from the body. 

  5. Medical issues

    Sometimes, having small testicles, or a testicle that hasn’t descended (when a testicle doesn’t drop from inside the body into its place in the scrotum) could be a sign of ‘hypogonadism’. That often happens with medical conditions such as Klinefelter syndrome (a genetic disorder) and can impact a man’s fertility, as less testosterone and sperm are produced. The condition is rare though, and there are other signs and symptoms beyond small testicles. 

Do you have questions about testicles? Head to our discussion board, where our moderators will answer all the queries you may have.

Tell us what you think

Recent Comments (43)

  1. my problem is that i always…
    my problem is that i always produce less sperms and my testicles are always in pain what could be the problem?

    1. Hi Reuben, first, the…

      Hi Reuben, first, the average amount of semen per ejaculation is 3.5 millilitres which is just about a tea spoon. If you are constantly experiencing pain in your testicles, it maybe important to seek medical attention. You may also consider wearing loose underwear to try and make yourself comfortable. Check out the following articles;- https://lovemattersafrica.com/our-bodies/male-body/ejaculation

      https://lovemattersafrica.com/our-bodies/male-body/healthy-testicles-and-penis-top-facts

    2. My balls Go inside…
      My balls Go inside sometimes And come down Specially when it’s cold they totally go up So should I seek a medical help Me I was thinking it’s normal since o was a kid it comes down and goes inside

      1. Hi abdi, 

        It is totally…

        Hi abdi, 

        It is totally normal for balls to shrink and pull the testes closer to the body to maintain warmth when it is cold so this should not worry you at all. Unless you have swelling or lumps or abnormal discharge, you are fine. 

  2. If I have only one testicle…
    If I have only one testicle can I make a woman pregnant?

  3. Sometimes I feel pain in my…
    Sometimes I feel pain in my testicle after sex is this normal?

  4. How do you know if your dick…
    How do you know if your dick is too big for your partner?

    1. Hi, first, the vagina is…

      Hi, first, the vagina is able to stretch to accommodate penises of various sizes. Also, if your partner experiences pain all the time you have sex and this is associated with your size then it is important to be careful when having sex to ensure it doesn’t cause pain. There are a few things you can do to make sure sex is enjoyable for you and your partner. Check this out;- https://lovemattersafrica.com/making-love/big-penis-and-sex

  5. Doe the size of testicle…
    Doe the size of testicle affect the size of my Penis?

    1. Hi, the size or shape of…

      Hi, the size or shape of testicles does not affect the size of your penis.

  6. How do I know my sperm is…
    How do I know my sperm is healthy?

  7. does pornography affect my…
    does pornography affect my manhooth in one way or another?

  8. I don’t produce enough…
    I don’t produce enough sperms . what should I do?

    1. Hello Mukisa, what makes you…

      Hello Mukisa, what makes you feel you don’t produce enough sperm? When a man ejaculates, what can be seen by the naked eye is semen. Sperms are contained in the semen but cannot be seen by the naked eye. To get to know the status of your sperm, you need to have a test done. You can however do the following to keep your sperm healthy, check out this article;- https://lovemattersafrica.com/our-bodies/male-body/eight-tips-to-keep-your-sperm-healthy

  9. my testical is the size of…
    my testical is the size of strawberry…can a woman conceive?

    1. Hello Annymous, thank you…

      Hello Anonymous, thank you for your question. To determine whether a man is able to cause a woman to be pregnant it is best that they have a test called a semen analysis carried out.

  10. I have a very small testis…
    I have a very small testis and my penis is small before reaction..is that affect my fertility?

    1. Hello Daniel, thank you for…

      Hello Daniel, thank you for reaching out to us and asking a fantastic question. In a 2014 study published in the African Journal of Urology, researchers found that smaller testicle size corresponded to reduced sperm density. However, you may have smaller-than-average testicles and be just as fertile as someone with larger testicles so you need not worry! 

  11. one of my testicle isn’t the…
    one of my testicle isn’t the same shape as the other. Is that normal if not what should i do?

    1. Hi David, it is perfectly…

      Hi David, it is perfectly normal for one testicle to be slightly larger than the other or hang slightly lower. However, if this is a recent occurrence or if it is accompanied by pain it is adviseable that you see a medical professional for a comprehensive diagnosis and advice on the way forward.

  12. Does small testicles affect…
    Does small testicles affect the penis from producing health sperm

    1. Hello Johnson, what is small…

      Hello Johnson, what is small? Because on average a testicle is between 4.5 to 5.1 cm long. Testicles that are less than 3.5 cm long are considered small. The length is determined by ultrasound or a special tool. Studies show that even though smaller testicles are linked to denser semen and in some cases up to 20% less sperm production but it does not affect fertility.

  13. my penis is small and i…
    my penis is small and i spend with a woman she does feel, what can i do?

  14. Can someone with three…
    Can someone with three testes pregnant woman

  15. Hello Leo, thank you for…

    Hello Leo, thank you for reaching out to us and asking a great question. Having 3 testcles, also known as Polyorchidism often has no symptoms outside of the extra testis. When symptoms are present, they may include pain in the scrotum or lower abdomen, or an obvious mass in the scrotum.

    Usually, the additional testis or testes are on the left side. The extra testicle is typically not as large as the two normal testes, making it more likely to go undetected for a long time.

    To answer your question, fertility is often unaffected by polyorchidism. A third or fourth testicle may function in the same way as a normal testicle.

    If, however, you have been diagnosed with polyorchidism and fertility is becoming a challenge, talk to a fertility specialist. It’s not likely that a third or fourth testicle should interfere with the healthy function of the other two, but you may need further fertility testing just to make sure.

    Have a wonderful week ahead and stay safe!

  16. My ballsack can feel a bit…
    My ballsack can feel a bit numb sometimes if I am sitting in one place for too long but it goes back to normal after I get up

    1. Hi Sahir, what you are…

      Hi Sahir, what you are describing sounds normal. However, just to be sure kindly see a medical practitioner at your earliest convenience for a comprehensive diagnosis and advice on the way forward.

  17. MY testicle and pennis are…
    MY testicle and pennis are just too big..the bulge is causing me depression i need help pls

    1. Hello John, have you spoken…

      Hello John, have you spoken to a medical practitioner about it?

  18. Hello.
    I masturpated 6times…

    Hello.
    I masturpated 6times in three days . then i noted my right testicle become smaller. Does it affect my fertility

    1. Hi Ahmed, thank you for…

      Hi Ahmed, thank you for reaching out to us. There is no medical evidence that masturbation has an effect on testicle size. There are myths that we have heard about masturbation that are spread to discourage people from masturbation however they are mostly untrue. This article has more information on this.

      https://lovemattersafrica.com/making-love/ways-to-make-love/masturbation-myths-busted

      Please note the reduction of your testicle size may need you to see a medical practitioner. You can also call Marie Stopes Kenya today on 0800 720005 (free of charge) to book an appointment with them.

  19. I’m 18, my left side…
    I’m 18, my left side testicle is way bigger, it 10cm long 4cm wide. And my right side testicle is smaller than its used to be. Is this okay or should I see a doctor.

    1. Hello Anonymous, thank you…

      Hello Anonymous, thank you for getting in touch and asking a great question. As we mentioned in the article above, balls grow at the same rate, but most of the time, one keeps growing a bit more and for slightly longer than the other one. That’s why it’s absolutely normal that one testicle is slightly bigger than the other, or that it has a different shape.  
      Also, it’s common that one ball hangs a bit lower than the other. It’s believed that the reason behind this is that balls will take up less space if they are asymmetrical.  
      If your testicles get bigger once you have reached adulthood or you notice any swelling around them, you should see a doctor, as this could be a sign of medical issues.  
      Shrinking testicles are normal though, as you get older.

  20. Can testicles blush like how…
    Can testicles blush like how faces can?

    1. Hi Deez, 

      Interesting…

      Hi Deez, 

      Interesting question right there! Do your testicles blush?

  21. My testicles have turned…
    My testicles have turned into the shape of a pill. Which is concerning cause theyve always been ball shaped. Also dont know if this corolates but im also getting over clamydia

    1. Hi Jay, 

      First, testicle…

      Hi Jay, 

      First, testicle size can fluctuate due to changes in temperature or with age. So, does the shape of your balls go back to normal sometimes? If this is not the case, the change in the size and shape of your balls is not normal at all. Please visit a healthcare provider to get a diagnosis and appropriate treatment.

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