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A 60-year-old female asked:

Is it normal for a twelve year old boy to have one testicle larger and lower than the other?

3 doctor answers7 doctors weighed in
Dr. Robert Killian
General Practice 30 years experience
Anatomy: Yes. Of course. One testicle is always more dominant than another.
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Dr. James Lin
A Verified Doctoranswered
Urology 53 years experience
Here are some ...: The level and size of both halves of the scrotum is not same and symmetrical with no prevalence to either side among most of males, at least to a degree. As to the size of testicles, that usually needs to be professionally palpated, estimated or measured with experienced hands or a ruler' but largely, the size & consistency of both testes are quite symmetrical. So, use these to discern & confirm..
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Dr. Albert Melaragno
Pediatrics 47 years experience
Probably normal: One testicle sitting lower is normal, as is one testicle being a little larger. As long as this isn't an acute change, or associated with pain, it probably is HIS normal. Have your doctor evaluate this at his next physical
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Related questions

A 32-year-old female asked about a male:
Ok so my 7 year old sons has left retractile testicle,its there after a hot bath or while he is asleep,the right one is perfectly normal in the scrotum,both are smooth and firm but the retract one feels slightly smaller is this worth worrying?
Dr. Yvette Kratzberg
Pediatrics 26 years experience
Not serious: A retractile testicle is caused by an overactive muscle. It slides easily into and out of the scrotum. Your childs Dr should examine the testicles ann... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 40-year-old female asked:
My son who is 2 years old has one testicle that is slightly larger than the other. We noticed it about 2 weeks ago but the decreased over the last 2 weeks.
Dr. Robert Kwok
Pediatrics 35 years experience
Doctor can examine: His pediatrician can take a look to decide what to do. Testes don't have to be matching in size exactly, but if one is a lot bigger than the other, th... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 31-year-old female asked:
One testicle of 2 month old baby is 3 times larger than the other, pedia ask to wait & observe & recommeng operation. Is this normal or alarming?
Dr. John Tillett
Urology 24 years experience
See below: The most common cause of scrotal enlargement in an infant is a congenital hernia or hydrocele. Some of these will resolve on their own, usually by 6-... Read More
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A male asked:
M-46. Ever since I jumped from a height when I was 10 years old, I saw that one of my testicles became big. The size is still big. How to reduce it?
Dr. James Krick
Urology 38 years experience
See a urologist: 36 years of enlargement is not likely a serious problem. One common cause is hydrocele. This condition is due to fluid around the testis and can be s... Read More
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Dr. Ed Friedlander
Pathology 46 years experience
Betting on a hydrocele, inguinal hernia, or organized hematoma if you really banged it.
Dec 27, 2016
A 18-year-old male asked:
I am 16 years old and I noticed that one testicle is bigger than the other one. What is the most common cause. Is this normal. Could it be cancer?
Dr. Gurmukh Singh
Pathology 51 years experience
Likely normal: Asymmetry in the paired organ is quite normal. Woman generally have one breast larger than the other. As long as the size is stable, there is no need ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
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Last updated Nov 8, 2017

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