Many men have what is called a low sperm count (Oligospermia), which is a form of male infertility. A normal sperm count is 20 million/ml or more sperm per milliliter of semen. Anything less than 20 million is considered a low sperm count. There are many causes for a low sperm count such as stress, obesity, infections, genetic reasons, wearing tight-fitting jeans and underwear, taking very hot baths and being exposed to environmental pollution and toxic chemicals. Luckily, there are treatment options available for this disorder, but you must first visit your doctor for an evaluation and lab tests.