Male Pattern Baldness
This is the most common type of hair loss. 50-70% of men encounter this type of hair loss in different levels at any stage of their lives.
Basically it is characterized by the change of thick terminal hair to thin hair, and the miniaturization and disappearance of the follicles. In addition, it can be also observed that the Anagen (growth) phase of the hair cycle shortens and the telogen (resting) phase extends. As a result, the number of follicles decreases and existing hair becomes thinner regionally. This condition is usually familial.
The Hamilton–Norwood scale is used to classify the stages of male pattern baldness based on the shedding area and hair loss severity. Hair loss in androgynous alopecia often starts from the frontal hairline (temporofrontal line) and the top of the head. Currently FDA (U.S. Food and Drug Administration) approves minoxidil and oral finasteride for the treatment of this condition. Several of low level laser therapies (LLLT) are also included in FDA-recommended treatment protocols.
Although they are not included in treatment protocols by FDA, platelet rich plasma (PRP) treatments have positive effects in studies also. PRP, oral dutasteride, topical finasteride, and oral minoxidil are also experimental products that gave positive results in treatment.
Microblanding and similar camouflage techniques are also used frequently on patients.
Hair transplant surgery is the most frequently used procedure today and it provides permanent and dramatic solutions on patients.