Hair loss: patterns and causes of men and women
Hair loss: patterns and causes of men and women
Hair loss in men and adult women is not uncommon. Adults lose about 10,000 scalp hairs each day. Hair normally lives for about five years. Male and female pattern baldness happens when these hairs do not always replaced (in general) and gradually bald areas appear. There are many loss treatments hair loss remedies and on the market today. But how effective are they? We will have a post-mortem causes of hair loss and hair loss treatment available today and know what products or treatments that suit the majority.
The normal growth cycle of hair loss and
The normal cycle of hair growth lasts from 2 to 6 years. Each hair grows at a rate about 1 centimeter per month during this phase. In fact, about 90 percent of the hair on your scalp is in the active phase of growth, while the remaining 10% are dormant. Once a hair enters a latent phase (growing hair), remain on the scalp for 2 to 3 months and then fall. It is normal to the hair every day (average of 100 chapters), as part of this cycle. However, some people may experience excessive (more than normal) loss hair. Hair loss of this type can affect men and women and even children.
The causes of hair loss
Disease
A number of things can cause excessive hair loss. For example, about 3 or 4 months after surgery or a major illness can suddenly lose a lot of hair. This loss of hair is stress-related illness and is temporary. Hormonal problems may cause loss hair, which most often caused by stress. If your thyroid gland is overactive or underactive thyroid, hair may fall out. Some infections can cause hair loss. Fungal infections of the scalp can cause hair loss in children. Finally, hair loss can occur through illness disease underlying disease like lupus or diabetes.
Clean the scalp
If you have dandruff, you need to get rid him. Dandruff can be a source of hair loss when combined with soil, chemicals, shampoo and excess follicle sebum oil. Over time this combination of chemicals can create a film on your scalp that hardens and begins to clog hair follicles. Once connected, the follicles can not support the growth of hair.
DHT (di-hydro-testosterone)
When quantities Excessive testosterone is converted to DHT by the enzyme 5-alpha, this DHT accumulates in the hair root, which blocks blood flow to the hair follicle. This decrease of blood to the hair root is weakened and loses health.
Male pattern baldness
Male pattern baldness alopecia androgenetic form (pattern hair loss hereditary) represents over 95% of hair loss in men. At the age of 35 years, two thirds men have some degree of loss sensitive haired and 50 years about 85% of men have a lot of thinning hair. About 25% of men suffer from male pattern baldness begin the painful process before they reach 21. In male pattern baldness, the results of pattern hair loss in a row ticket and baldness on the top head. Most men with male pattern baldness are extremely unhappy with his situation and would do anything to change it. Hair loss affects all aspects of your life. Affects interpersonal relationships and professional life. It is not uncommon for men to change their careers because of the loss hair.
The causes of baldness in men
Most men are genetically predisposed to baldness male pattern. Is this the effect of hormones on the hair follicle that produces male pattern baldness. Testosterone, a hormone that is present at high levels in men after puberty, is converted into dihydrotestosterone (DHT) by an enzyme called 5-alpha reductase. DHT has a negative effect on hair follicles. Acting on a hormone receptor in the hair follicle it slows down hair production and produces fragile hair, short, sometimes it stops growth of the hair follicle completely. This process gradually depletes its reserves of hair and hair loss is normal.
female baldness
Pattern hair loss in women are not as easily recognizable as those of men. Unlike hair loss in men hair loss Women often the scalp may begin at any age 50 or later, you can not have a clear association hereditary and can not not produce a recognizable "female alopecia" of diffuse thinning over the top of the scalp. A woman who finds the appearance of hair loss can not be sure that loss will be temporary or permanent, for example, if there was a recent event, such as pregnancy or illness that may be Temporary associated with thinning hair.
Patterns that can occur:
- diffuse thinning of hair on scalp, often with more sensitive taper toward the back of the scalp.
- Diffuse thinning throughout the scalp, with more significant thinning toward the front of the scalp but not involving the frontal hairline.
- Diffuse thinning throughout the scalp, with more noticeable thinning forward of the scalp, involving and sometimes cross the front hairline.
Causes of baldness in women
Among women than among men, the most likely cause of hair loss is androgenetic alopecia, an inherited susceptibility to the effects androgens (male hormones) on scalp hair follicles. However, women with hair loss for this because that usually do not develop not true baldness in the patterns that occur in men, for example, women rarely develop the "cue ball" appearance common Androgenetic alopecia in the male type. Unlike the case of men, thinning hair in women due to androgenetic alopecia not uniformly grow smaller diameter (miniaturization).
Women with hair loss due to androgenetic alopecia tend in miniaturizing hairs of variable diameter in all affected areas of scalp. Although hair miniaturization is a feature of androgenetic alopecia, miniaturization may also be associated with other causes and is not in itself a diagnostic feature of androgenetic alopecia. Among postmenopausal women, for example, hair may begin to miniaturize and become difficult to style. An accurate diagnosis must be made by a doctor who specializes in hair restoration products hair or appropriate treatment.
It is important to note that hair loss in Women may begin in adolescence to age 20 for women have experienced early puberty. If untreated, this hair loss associated in early puberty can progress to hair loss the most advanced.
No hair loss the cause of women
In women more often than men, hair loss may be due to conditions other than androgenetic alopecia. Some of the most common of these causes are:
Trichotillomania – compulsive hair pulling. Hair loss due to trichotillomania is typically irregular, as compulsive hair pullers tend to concentrate the pulling in selected areas. Hair loss for this cause can be treated effectively as psychological or emotional reasons for trichotillomania are effectively addressed.
Alopecia areata – an autoimmune disease that can cause hair loss in patches that can range from diffuse thinning to extensive areas of baldness with "islands" kept hair. Examination medical need for a diagnosis.
Triangular alopecia – Hair loss begins in the temporal regions sometimes in childhood. Hair loss may be complete, or a fine of a few, thin hairs in diameter can stay. The cause of alopecia Triangular not known, but the condition can be treated medically or surgically.
scarring alopecia – loss hair due to scarring of the scalp surface. Scarring alopecia typically involves the upper part of the scalp and occurs predominantly in women. The situation occurs frequently in African American women and is believed to be associated with persistent tight braiding or "corn-rowing" of hair. A scarring form of alopecia may also occur in postmenopausal women, associated with inflammation of hair follicles and subsequent scarring.
Telogen effluvium – a common type of hair loss caused when a large percentage of scalp hairs are shifted in "shedding" phase. Causes of telogen effluvium can be hormonal, nutritional, drug associated or stress-related. syndrome Loose anagen-a condition that occurs mainly in people with blond hair in the scalp hair is loose in the hair follicles and is easily removed by combing or pulling. The condition may appear in childhood and may improve as a person ages.
There several products on hair loss and hair loss treatments available on the market. It is recommended that users should exercise due diligence to identify products that are better off, to stop hair loss and thinning hair.
References:
EA Olsen (Ed). Hair loss in women: clinical and hormonal factors as possible. J Amer Acad Dermatol 2001; 45: S-70-S80.
Olsen EA. hair disorders. In: Freedberg IM et al (eds.) Fitzpatrick Dermatology in General Medicine, 5th ed. New York: McGraw-Hill, 1999:729-751.
International Society Surgical hair restoration
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