Alopecia stages

Which stages of alopecia are differentiated?

Baldness in men is a very common problem. Modern representatives of the stronger sex take care of their appearance not less than women. Thinning hair throws them in horror. Baldness (alopecia) is called abnormal hair loss as a result of which the hair becomes thin or disappears completely. Hair loss in some men begins at an early age. With age the majority of the male population faces hair loss. Unfortunately, the disease is often detected at later stages. Why do you experience male pattern baldness and how to prevent its development? Male type of hair loss and the degree of hair loss is usually determined using the Hamilton-Norwood scale. Find out more about alopecia stages and define which one you have.

Stages of alopecia by Norwood scale:

There is a popular Hamilton- Norwood Classification, which describes in detail the stages of baldness. For the first time, this classification of Norwood was published in 1975 by Dr. Otar Norwood and it is widely used today in the cases of male pattern baldness.

Classification identifies two main types of alopecia, as well as several minor types. According to it, the two areas of hair loss – bitemporal recession and thinning crown – gradually increase in size and merge (i.e., the hair falls out at the front of the head and on the top). Dermatologists and trichologists use it to determine the severity of the patient’s baldness. The same classification is widely used in monitoring the results of studies of various drugs. For the first time the scale was developed by Hamilton in 1950, and in 1970 it was amended and supplemented by Norwood. Today, Hamilton-Norwood classification includes 7 degrees of male androgenetic alopecia with several subtypes.

There are the most common stages of hair loss classified:

Stage number 1: The frontal hair line is not shifted or minimally moved back.

Stage number 2: On the forehead and the temples the small receding hairline of symmetrical triangular shape appears. In these areas the hair can become thin or completely fall out.

Stage number 3: Receding hairline become deeper. High temples are expanding, shifting section of hair in the middle of the forehead. At this stage, some men may see one more thinning of hair on the crown. The frontal parietal variations are less pronounced and the receding hairline has the higher density.

Stage number 4: Round balding spot appears at the top of the head. It can be completely naked or covered with fuzz. Temporal receding hairline expands even more. The frontal line of hair is removed, leaving areas with sparse hairs.

Stage number 5: The coat between the receding hairline and bald parietal area narrows and thins. Forehead thick hair can remain an island surrounded by bald or badly thinning areas.

Stage number 6: The boundary between the parietal and temporal areas is virtually erased. Sparse hair on it intensively falls.

Stage number 7: The most serious degree of baldness, where hair on top of the head is almost completely absent. Hair has the horseshoe shape. The remaining hair continues to fall out.

Symptoms of alopecia in men

Men are more likely to pay attention to raising the hairline in the frontal zone due to their thinning and loss. This leads to an increase in the upper part of the face. Many men experience the thinning of hair growth in the forehead together with slow hair loss in the nape of the neck area, then both sites of thinning are expanding towards each other to form a completely bald area (alopecia according to the male pattern). It develops in the activity of a substance dihydrotestosterone in the scalp area, sensitive to male sex hormones.

Symptoms of alopecia in women

In women, hair growth on the forehead line remains intact, baldness begins with a thinning of the parietal area, the expansion of the central parting and spreads diffusely breadth. Patients often pay attention to such signs of alopecia, as a reduction in volume of the beam, and the appearance of visible areas of bare scalp hairstyle with strained hair. This type of baldness takes place according to the female alopecia pattern. Complete baldness in women on the background of hormonal changes can also be observed.

What are the reasons of alopecia?

Causes of male pattern baldness are associated with an increased amount of testosterone and the high sensitivity of the hair follicle. Testosterone belongs to androgens, which are male sex hormones. By using enzymes it is converted to the active form – dihydrotestosterone. Active testosterone inhibits the growth of the strands and causes the destruction of hair follicles. Gradually hairs become very weak and barely noticeable. After 10 – 12 years skin tissue tightens follicles mouth, not allowing breaking out even thin hairs. Early baldness in men is often found after 30 years. Most often early baldness is caused by heredity. Such properties of the organism are transmitted from parents to children through genetic. Tendency to hair loss after the age of 30 in 75% of cases is transmitted through the maternal line. Probability of alopecia inheritance from the father does not exceed 20%. Androgenic alopecia can be provoked by endocrine diseases in which the male has the increase in the level of testosterone. Adversely affect to the scalp hair is caused by liver disease, pancreas and gastrointestinal tract diseases. Losing hairs can be caused by the long-term use of antidepressants, hormones or antibiotics. Improper diet poor in vitamins and iron often causes hair loss. According to recent studies, smoking is able to trigger a mechanism of early baldness in men. Men who smoke more than 20 cigarettes per day are more likely to have moderate and severe forms of alopecia.

How to return the lost hair?

Treatment of alopecia depends on its cause. The most common problem solution is taking special preparations, among which there is an effective drug used for alopecia in men as Propecia, which is able to help you preserve hair, which you have today and contribute to the growth of new hair. Most number of men report getting positive results after using the drug on the regular basis.

This article was written by Vetta Thompson, the founder of The Center, who is one of only 9 internationally certified trichologists in the entire United States, certified specialists in the field of trichology.
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