Your genetic coding and how your body reacts to different hormones is the basis of hereditary hair loss. Andorgen alopecia is the cause of the majority of hair loss. Androgens are hormones present in both men and women. Androgenic hormones actually belong together, but the male hormone testosterone, but because both men and women have testosterone and estrogen, it affects both sexes and how your body reacts to androgens is an important factor for androgenetic alopecia. At andorgen alopecia hair follicle passes genetic programming to produce shorter hair from previous anymore and dyed hair. Note that some pills contain androgens.
It is much more common to suffer from androgenic alopecia as a man, and according to some sources, 50% of men over 50 years of androgenetic alopecia. But hair loss can begin much earlier, and men can suffer from it even before they reach 20 years of age.
Finasteride, a fat-soluble synthetic drugs, was initially intended for the treatment of benign benign prostatic hyperplasia (BPH) – benign prostatic hyperplasia. Finasteride was approved in 1992 and five years later, in 1997, it was also approved for the treatment of male pattern baldness.
Finasteride is composed of a synthetic steroid that inhibits the conversion of testosterone to dihydrotestosterone. Finasteride chemical name is N-tert-Butyl-3-oxo-4-aza-5?-androst–1-ene-17?-carboxamide (see picture below).
Finasteride is sold under the names Proscar and Propecia in Sweden. Proscar tablets containing 5 mg of finasteride and used against BPH and Propecia tablets contain 1 mg finasteride, and used to treat inherited male pattern baldness. Both drugs are prescription.
Like most drugs also have side effects Finasteride. They said, however, be transient, meaning they should disappear when the treatment is completed. Some side effects Nams, and affects less than 1 in 100 people are depressed mood, decreased libido, erectile difficulty and ejaculation. Other side effects where frequency is not known are hives, itching, allergic reactions, rash, and swelling of the face and lips. More rare side effects include breast tenderness / breast enlargement, testicle pain, palpitations, elevated liver enzymes and residual erectile dysfunction after discontinuation of treatment.
Classification of baldness
The most widely used classification of hair loss in men is Norwood – Hamilton that divide the hair into seven types:
Type I: No / minimal change in the front hairline at the temples.
Type II: hairline at the temples have symmetrical triangular tabs. They do not reach further back than 2 cm in front of the ear.
Type III: The triangular tabs in Type II extends further back than 2 cm in front of the ear.
Type III Vertex: The hair loss is greatest on the crown. Anterior hairline may resemble Type I or II, but should not exceed Type III.
Type IV: Loss of hair on the crown of larger change in the frontal hairline than Type III. However, there is a distinct band of hair in front of the head.
Type V: Greater hair loss than Type IV with only a small strip of hair in front of the head. The hair is left in occipital and parietal parts begin to be shaped like a horseshoe seen from above (also applies to Type VI and Type VII).
Type VI: No hair front of the head and increased loss of hair on the sides and rear.
Type VII: The most pronounced bald unit. Only a thin horseshoe-shaped band of hair is left from the ears and around the back of the head.
Types II to V are also referred to as Type A, which is the summary which the entire front hairline moves backward without tabs at the temples, and then completely without hair loss on the crown.