Causes
- Varicocele where dilated scrotal veins overheat the testes
- endocrine deficits
- testicular infection
- toxic exposures
Symptoms
- Physically asymptomatic
- recognized primarily through inability to achieve pregnancy after 12 months of unprotected intercourse
Risk Factors
- Direct testicular heat from laptops on the lap
- hot baths or tight briefs
- tobacco
- heavy alcohol
- obesity
