1. Hello AskThisDoctor.com,
My left testicle is hanging lower than my right testicle. Is this is a sign of a disease or Hernia? It is not painful, but I am worried. What is this medical condition called?
- Magnus, Norway
2. Hi Doctor,
I am 20 years old and a virgin boy. My Right testicle hangs lower than my left testicle. I am very scared of this problem. How to cure this problem? Do I have to undergo surgery? Please answer asap!
- Abu Bakr, Pakistan
Answer: No, having one testicle hanging lower than the other is NOT a disease or a medical condition. It is natural and it is present in about 95% all men.
Why does one testis hang lower than the other?
- The reason is due to the venous blood drainage. In the left side, the testicular vein drains into the left renal vein. The left renal vein is smaller than the inferior vena cava to which the right spermatic vein drains into. This difference in the speed of venous blood drainage produces the difference in height of the two testicles.
- If you have two testicles hanging exactly at the same level, they would rub and bang against each other when you walk, run or do any physical activity. This will cause a lot of pain and trauma. Nature prevents this issue by hanging one testicle lower than the other.
- Enhanced Sperm Protection: A study in France has pointed out that each testicle maintains a slightly different temperature than the other. This is beneficial for sperm production.It is also advantageous to the protection of sperms as two testes rubbing against each other would result in increased temperature and be detrimental to sperms.
- Right handed or Left: Another study points out that your left testicle will hang lower if you are right handed. Conversely, if you are left handed, your right testicle will hang lower.
Note: The testis which hangs lower is also (usually) smaller than the other.
Another ancient Statue showing one testis hanging lower than the other.
1. The difference in the size of the testicles should be only around 8-11 % . If one testis is unusually smaller than the other, or if there is a bigger or increasing asymmetry, you should consult a doctor right away. This could be a sign of testicular cancer, hydrocele, varicocele and other issues.
2. You should experience no pain in either testicle. If you experience pain or discomfort, you should see a doctor.
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