What is Male Infertility?

Male infertility refers to a man’s reduced ability to cause pregnancy in a fertile female partner. It is a common factor in fertility challenges and contributes to about 40–50% of infertility cases among couples trying to conceive.

The most common cause of male infertility is problems with sperm production or sperm quality. This may include low sperm count, poor sperm motility (movement), or abnormal sperm shape. These issues can make it more difficult for sperm to reach and fertilize the egg.

Several medical and lifestyle factors may affect male fertility. Hormonal imbalances, genetic conditions, infections, varicocele (enlarged veins in the scrotum), and certain medications can impact sperm production. Lifestyle factors such as smoking, excessive alcohol use, obesity, high stress levels, poor diet, and exposure to heat or environmental toxins may also affect sperm health.

A fertility evaluation for men usually includes a medical history review, physical examination, and a semen analysis to assess sperm count, movement, and structure. Additional hormone testing or imaging may sometimes be recommended.

With proper evaluation and supportive treatment, many men can improve their reproductive health. Addressing underlying medical conditions, improving lifestyle habits, and receiving appropriate care can help increase the chances of successful conception.