Men lose hair for a variety of reasons. In some situations, the cause is unknown and cannot be pinpointed. In others, heredity factors play a major role. For those who have experienced hair loss of any type, it can be frustrating to find a solution to slow such loss or even to regrow lost hair. However, many men may be able to do just that. Science has uncovered a variety of common causes for men’s hair loss, and in some cases, it is possible to correct the underlying cause to see improvement. The following are the most common causes of hair loss in men.