Reasons for Hair Loss

Normally th hair in peoples skin is about 200 per cm2 ( 130-280 hair-cm. squared)  But 100 hair-cm2 will give a normal look. 100,000 strands of hair are in a normal head of hair. But may vary from person to person. 50-100 strands of hair loss is normal and may be seen daily. An increasing hair loss above this rate will lead to hair loss and hair loss in some areas which can be visual. 50% of men and 35% of women that are over the age of 50 are uncomfortable about their hair loss. 

Hair loss not due to skin diseases are divided into 3 catagories:

-When Dehydrotestosterone levels are high- Testosterone level falls dehydrotestosterone occurs which effects terminal hair follicles growth, the terminal hair follicles shrink and become vellus hair.

-Chemical products effects the development of the hair follicle receptors, and damage the growth development. Shampoos which have additives and concentrated chemicals may cause hair loss.

-Eating Disorders-In order to be healthy our body acquires a properly balanced diet, so does our hair. If our hair doesn’t access the proper vitamins and minerals hair loss will increase. (especially zinc and copper)

Norwoods classification:

The first classification was made by Dr. James B. Hamilton in 1951 and was modified by Norwood in 1970.  Norwood classification is still being used to determine the intensity and structure of hair quality. It basically classifies the extent  of the two sides of the balding areas, and the top and bottom degrees, shapes and types of  hair loss.

Norwoods types hair loss classications:

First stage: Young men’s hair type. The hair line is angled over the eyebrow, and there is no hair receding.

Second stage: Mature men’s hair type. The hairline border is receding 1.5 cm. above from the forehead. It is not considered hair loss.

Third stage: Early period hair loss type for men. Temples are seen receding.

Fourth stage: Hair loss is seen in the front and top area however, there is still hair between the front and top area.

Fifth stage: Increasing hair loss in th front and back and hair between both areas are thining.

Sixth stage: The two balding areas have now joined.

Seventh stage:  Front and back is now one wide bald area. The hair is receding from the sides and the nape.

According the the Norwood classification type A hair loss starts evenly from front to back.

Norwoods’s  Type A hair loss for men


Norwood Type A hair loss is not as common as the normal hair loss, less than 10%. Usually this draws the persons attention much more quickly because the hair loss starts receding from the front to the nape.  Therefore the need for the operation shows itself more than the other classifications. Is considered a good and favorable candidate for hair transplantation and results are perfectly natural.


Hair Loss Types other than The Norwood Classifications

Widespread type (not regional) hairloss –The hair loss is not receding from the hair line, but thinning throughout. Candidate is not as favorable for hair transplantation.