What does it mean if the testicles are small?

Jun 24, 2024 Source: Cainiu Health
Disease description:

My younger brother has small testicles and feels very self-conscious about it. I would like to ask, what causes small testicles?

Doctor's answer (1)
Dr. Luo Yong
Testicular hypoplasia may result from various factors. If congenital testicular dysplasia is present, it may affect normal testicular growth and development, leading to smaller testicular volume. Acquired factors may also play a role; for example, a previous mumps infection may lead to viral orchitis, which can cause testicular atrophy and shrinkage. Additionally, decreased levels of androgens in the body may also affect testicular development. Some theories suggest that reproductive system disorders such as varicocele, hydrocele, as well as environmental, dietary, and medication-related factors, may indirectly contribute to smaller testicle size. If this condition occurs, timely medical evaluation is recommended to identify the specific cause and implement targeted treatment.