What is the normal size of testicles?

Normal adult testicular volume is about 15-25ml. If testicular volume is reduced, it may be caused by congenital dysplasia or cryptorchidism. Viral infection, such as testicular inflammation caused by viral causes, may also cause testicular volume reduction. If testicular volume is increased, it may be caused by acute epididymitis-orchitis or testicular tumor. It is necessary to make a comprehensive etiological judgment through medical history, physical examination, laboratory examination, imaging examination, etc. to prevent delay in the disease. The above health science popularization knowledge is for reference only. The specific situation needs to be examined in a regular hospital and judged by a professional doctor.