Any defects or disorders in the testes are likely to interfere with your ability to conceive. These conditions can be hereditary, or may occur as the result of trauma or prolonged exposure to chemicals or heat. They include:
⦁ Chromosomal disorders
⦁ Infection
⦁ Testicular trauma
⦁ Conditions related to aging
⦁ Excessive heat
⦁ Testicular cancer (and its treatment)
⦁ Exposure to chemicals or pesticides
⦁ Mumps
⦁ Low sperm production and abnormal sperm shape