For a man it is relatively easy. Doctors usually begin by testing his semen and look at the number, shape, and movement of the sperm. Sometimes doctors also suggest testing the level of a man's hormones if there is suspicion there may be an imbalance or problem.

• Sperm Chromatin Structu...

ART refers to any infertility treatment that uses advanced technology to combine sperm and eggs outside the body in a laboratory. ART is a powerful technology that has had a profound impact on infertility care over the past two decades. More than 1 million babies have come into...