A smaller testicle does not mean there is no sperm. Small testis should be determined by professional testing, and the volume can be determined by ultrasound measurement. If the volume is less than 10ml, the testis is considered to be small. If the volume is more than 10ml or 12ml, the testis volume is considered to be normal. When the testicular volume is about 6ml, the testicular size can be clearly felt. In addition, it is not possible to judge whether the testicles have sperm according to their size. The simpler way is to do semen testing. If there is sperm in the semen, it can be clear that even small testicles can produce sperm.
Small testicles usually indicate relatively low testicular function, but not absolutely, that is, small testicles may represent low spermatogenic ability, but it does not mean that there is no spermatogenic ability. For some special cases, especially those with congenital testicular hypoplasia or chromosomal abnormalities such as Klinefelter syndrome, the testicles may not be palpable in the scrotum, or only the size of soybeans or peanuts may be palpable. At this time, it should be noted that testicular function may have been completely lost. It is recommended that patients go to the specialist in time for a definite examination. By checking the spermatogenic function of the testis and whether there are sperm in the semen routine, it is clear whether azoospermia is caused by testicular hypoplasia or complete small testis.