Understanding Low Sperm Count: Causes, Symptoms, and Treatment Options For a successful pregnancy, only one sperm is required to penetrate and fertilize the egg. Surprisingly, more than 39 million sperm are released per ejaculation, highlighting the incredible odds of fertilization. What is Low Sperm Count? Low sperm count, or oligospermia, occurs when the number of sperm is below 29 million per ejaculation. Clinical testing is essential to accurately diagnose this condition, as visual assessment of semen is insufficient. In cases of oligospermia, sperm counts can fall below the critical threshold of 15 million per millimeter of semen. Severe oligospermia represents counts below 5 million per millimeter, further complicating fertility prospects. Causes of Low Sperm Count Determining the precise cause of low sperm count can be challenging. Often, men may remain unaware of their condition until they seek medical advice due to difficulties in fathering a child. Factors such as geneti...