What are the causes of infertility in men?
Lifestyle changes can influence the seminal parameters. Certain medications and febrile illnesses (like malaria, typhoid)–can temporarily reduce sperm quality. The causes of sperm production problems can exist from birth or develop later as a result of severe medical illnesses, including mumps and some sexually transmitted diseases, or from a severe testicle injury, tumor, or other problem. Inability to ejaculate normally can prevent conception, too, and can be caused by many factors, including diabetes, surgery of the prostate gland or urethra, blood pressure medication, or impotence.