Is it normal to have one testicle larger than the other? Why does this happen?

In daily life, many men have one testicle larger than the other. So, is it normal to have one testicle larger than the other? Why does this happen?

Is it normal to have one testicle larger than the other?

Testicles play a very important role in reproduction. Is it normal for a man to have one testicle larger than the other? Let us explain. The size of the testicles of an average person is different on both sides, but the difference is not very big. According to statistics, the right testicle is slightly larger than the left. The right side is 3.38cm×2.37cm×1.78cm on average, and the left side is 3.30cm×2.27cm×1.71cm on average. Among normal men, some people have very obvious differences in their testicles since childhood, which is mostly caused by congenital diseases. Trauma can also cause differences in the testicles on both sides. Trauma causes bleeding and hematoma in the testicles, which results in testicular blood supply disorders, leading to testicular atrophy, so the testicle on the affected side is smaller than the opposite side. The mumps virus can destroy the seminiferous tubules that carry cells in the testicles, causing atrophy of one side of the testicle. At this time, you need to pay attention and go to the hospital for treatment in time.

What is the reason for one testicle being larger than the other?

Testicular dislocation is mostly caused by diseases, such as hydrocele, testicular tumor, epididymal tuberculosis, etc. If these diseases are not treated in time, they will also cause low quality of sperm and semen, affecting reproductive capacity. Mumps virus can destroy the seminiferous tubules of the testicles that transport cells, causing atrophy of one side of the testicle, which can also cause one testicle to be larger than the other. However, you should be careful not to think that other diseases in the scrotum are the cause of the dislocation of the testicles. You should distinguish the cause to avoid misdiagnosis. In short, if one side of the scrotum is significantly larger than the other due to any reason, you should check it out in time.

Other lesions in the scrotum are often mistaken for normal testicles with one larger than the other. For example, hydrocele is just a water bag around the testicle that wraps the testicle, not the enlargement of the testicle itself. Some people also mistake inguinal oblique hernia, varicocele, epididymal tuberculosis, epididymitis, etc. for testicular enlargement, because these diseases sometimes also manifest as one side of the scrotum being larger than the other side.

Normally, the left and right testicles may be different in size, but this does not affect you in general. The volume of a normal adult's testicles may be as large as 25 ml, or as small as 15 ml. Generally, as long as the testicles are above 15 ml, their functions are the same. Knowing the normal size of your testicles will help you detect pathological changes.

Some people have one testicle larger than the other since childhood, and the difference is very obvious. This is mostly caused by congenital diseases. What is the reason for one testicle larger than the other? For example, congenital unilateral testicular hypoplasia is manifested as one testicle is very small and thick, like the infantile type, while the compensatory hyperplasia on the other side is larger than that of ordinary people, resulting in one testicle larger than the other, but this situation is relatively rare.

Trauma to one side of the testicle can also cause one testicle to be larger than the other. Trauma causes bleeding and hematoma in the testicle, which results in insufficient blood supply to the testicle, which gradually shrinks and becomes significantly smaller than the other side. Mumps virus can damage the epithelial cells of the seminiferous tubules in the testicle, which is also one of the important reasons for one testicle to be larger than the other, and eventually causes testicular atrophy. If the enlarged testicle is not accompanied by any symptoms, the possibility of testicular tumor is high and attention should be paid. What tests should be done for one testicle to be larger than the other, such as B-ultrasound, testicular histological examination, etc.