Male pattern baldness is responsible for the vast majority of male hair loss. More than 95% of male hair loss is due to male-pattern baldness, a genetic trait. The gene can come from either parent. In male pattern baldness, the main symptom is a receding hairline and hair loss at the crown of the head. Toward the end of the stages of male pattern baldness, the only hair remaining is in a horseshoe pattern around the base of the scalp