Each hair on your head has a growth cycle. With male pattern baldness, this growth cycle begins to weaken and the hair follicle shrinks, producing shorter and finer strands of hair. Eventually, the growth cycle for each hair ends and no new hair grows in its place.

Inherited male pattern baldness usually has no medical ill effects. However, sometimes baldness has more serious causes, such as certain cancers, medications, thyroid conditions, and anabolic steroids. See your doctor if hair loss occurs after taking new medications or when it’s accompanied by other health complaints.

Doctors use the pattern of hair loss to diagnose male pattern baldness. They may perform a medical history and exam to rule out certain health conditions as the cause, such as fungal conditions of the scalp or nutritional disorders. Health conditions may be a cause of baldness when a rash, redness, pain, peeling of the scalp, hair breakage, patchy hair loss, or an unusual pattern of hair loss accompanies the hair loss. A skin biopsy and blood tests also may be necessary to diagnose disorders responsible for the hair loss.

Male pattern baldness can begin in your teenage years, but it more commonly occurs in adult men, with the likelihood increasing with age. Genetics plays a big role. Men who have close relatives with male pattern baldness are at a higher risk. This is particularly true when their relatives are on the maternal side of the family.

If your hair loss begins at the temples or the crown of the head, you may have male pattern baldness. Some men will get a single bald spot. Others experience their hairlines receding to form an “M” shape. In some men, the hairline will continue to recede until all or most of the hair is gone.

Medical treatment isn’t necessary if other health conditions aren’t a cause. However, treatments are available for men who are unhappy with the way they look and would like the appearance of a fuller head of hair.

Hairstyles
Men with limited hair loss can sometimes hide hair loss with the right haircut or hairstyle. Ask your hairstylist for a creative cut that will make thinning hair look fuller.