Dr. Kaberi Banerjee, Medical Director, Advanced Fertility & Gynecology Center, New Delhi, will discuss the causes of male infertility in this video. The cuases of male infertility are very varied. Mostly smoking, alcohol consumption, obesity, varicocele, radiation and chemotherapy and also the pollution which is affecting the spermatogenesis. Children can have testicular injury which leads to testicular torsion eventually resulting in azoospermia and hypospermia.