Am I Normal? The Definitive Guide to Normal Balls

Balls are weird. But some are weirder than others. Learn about normal balls, including shapes, sizes, and what it could mean for your overall health.

Big balls. A real set of low-hangers. Brass balls. With so many phrases like that out there, it seems like our society is obsessed with ball size and shape. There’s even an AC/DC song about it. But for all the idioms out there, we keep pretty quiet about what normal balls actually look like. What’s the average testicle size? Does size really matter? What about lumps and bumps? It’s time to grow a pair and talk about what’s normal for your balls.

What’s the average testicle size?

First off, to determine average size, there needs to be a standard way of measuring testicles. Since testicles aren’t exactly a shape that lends itself to easy measuring, doctors have created a way to measure testicular volume (basically the total size of the testicle) using a simple tool. Urologist use an orchidometer, basically a series of differently sized beads/balls that are compared to the size of the testicle. The bead that most closely matches the size of the testicles is used to determine total testicular volume.

The normal range of testicular volume is 12-30 ml, with the average size being 18 ml. It’s not outside of the ordinary for one ball to hang slightly lower than the other, or to be slightly bigger (roughly half a teaspoon bigger) than the other. However, if the size difference is any larger than that or accompanied by pain of any kind, we recommend you see a doctor, this could be swelling due to any number of conditions.

Does Testicle Size Matter?

Doc’s are pretty split on this issue, but in general, bigger does not necessarily mean better. With testicles, you want to fall within the average range. Abnormally small testicles (adult testicles with a volume of 12 ml or below), also known as microorchidism, are associated with a number of conditions, including Prader-Wili Syndrome, and Klinefelter Syndrome. On the other side of the spectrum, abnormally large testicles (adult testicles with a volume over 30ml), also known as macroorchidism, is associated with Fragile X Syndrome, a thyroid deficiency, or numerous other hormonal disorders.

Recently, studies have been released attributing different traits to different testicular sizes. For example, this study done by Emory University that found that men with smaller testicles make better fathers. Or this study from Italy that showed a correlation between large testicles and heart disease. However, at this time, more research is necessary to determine the relationship between testicular size and overall health.

If you’ve notice a marked change in testicular size, it’s important that you check in with a doctor. This could be due to a number of health complications, including hormonal changes brought on by thyroid issues, or excessive swelling.

Lumps, Bumps and Veins: Oh My!

You’re testicles are a pretty bizarre shape, but in general, they should be oval and fairly smooth. If you notice a change in texture (lump, bumps, enlarged/varicose veins), see your doctor as soon as possible. While there’s no reason to panic (testicular cancer accounts for about 1% of male-related cancers, so the chances of the lumps being cancerous are fairly low), the lump won’t just go away on it’s own and the longer you choose to ignore it, the more the symptoms will persist.

13 thoughts on “Am I Normal? The Definitive Guide to Normal Balls”

  1. I have 8 and 11cc testes and I don’t think either Klinefelter or Prada-Wili, I have normal facial hair and high sex drive, average penis.. dunno what to make of it

    1. Sounds like they are working quite well. I wouldn’t be overly concerned unless you start experiencing symptoms of low T or want to better understand if there is fertility issue. Then you could decide to get tested but it seems like you don’t have any reason to be concerned.

  2. Mine are 8.3 cm3 and I have always low Testosterone even in the morning when it should peak. The OMS uses 39 million as a reference value, I have around 0.8 million 🙁 the great majority are immobile (not even wheelchair bound). Since I never had a disease that would cause infertility my urologist suspected Klynefelter. I do fit in around 80% of the “symptoms” of Klynefelter but the Kariotype came normal (had to wait 9 months to get the results so I don’t know whether I could trust it). And so, I am childless

  3. My right testis is 5.6cm3 while the left testis is 6.2cm3.They are both small in size, but with the right testis hanging up. However, I experience weak erection, quick ejaculation, low sexual drive, and with no sperm cell found in my semen. I’ve been married since year 2015 but with no kids yet. What could be responsible for this, please?

      1. Mine are 1.5inch the right one and 1.3inch left one, which is weird considering the left one is usually bigger & hangs down lower. Used measuring tape when skin was loose

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