With hair loss in men, hair at the temples recedes and the crown can also begin to thin.
Eventually a horse shoe pattern around the sides of the head appears.
The main signs of hair loss in men:
1. Receeding hairline
2. Moderate to extensive hair loss, particularly on the crown of the head.
About ninety-five percent of hair loss in men is attributable to Androgenic Alopecia also know as male pattern baldness.
Some believe this condition includes three factors:
1) age 2) heredity 3) the male hormone testosterone
As hair loss in men progresses, the hair becomes finer, does not grow so long and the bald spot at the crown widens.
Finally, the thinning crown and the receding points may meet forming a horseshoe pattern with hair around the sides of the head.
Hair loss in men can begin as early as 20 although for the majority of men, hair loss is more noticeable from the age of 35 to 40.
DHT (Dihydrotestosterone) is recognized as a main culprit. DHT is a combination of testosterone and androgen receptors mixed with sebum and dirt particles. Some hair follicles are particularly sensitive to DHT and tend to shrink when exposed to it. Finally the hair follicle may shut down altogether and the hair falls out.
Another condition is called Alopecia Areata, in which hair comes out by the roots in one or more spots. It is much less common than Androgenic Alopecia.
Other causes of hair loss in men can include scalp infections, nutritional deficiency, systemic illness, and severe stress.