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The Causes of Hair Loss Facts

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Hair loss facts

All humans are born with a finite number of several types of cells - nerve cells and muscle cells for instance, and a finite number of structures, such as hair. Severe illness, malnutrition, or vitamin deficiency can speed or exacerbate the natural hair loss process, but many healthy men lose more hair than others do. This natural process is called androgenetic alopecia or common baldness.

 

The most common type of hair loss is called Male Pattern Baldness. This name is actually incorrect since this type of hair loss also occurs in women, but in a slightly different form a more correct scientific name for this type of hair loss is androgenetic alopecia. Androgenetic alopecia is a process in which follicles that is producing terminal hairs change. They begin to produce thinner, shorter hairs with weaker shafts. Eventually, these follicles produce only fine, almost invisible, vellus hairs, or they may die out altogether. Androgenetic alopecia requires three conditions for its occurrence - the genes for hair loss, male hormones in adequate quantities, and time (this sounds better than age).

1.- Genes

Genes that are located on the X or Y-chromosomes are call sex-linked. Genes on the other 22 pairs of chromosomes are called autosomal. It is felt that the genes governing common baldness are autosomal. This means that the baldness trait can be inherited from the mother's side of the family or the father's side.

The genes involved in androgenetic alopecia are felt to be dominant.

2.- Hormones

These same hormones that cause acne and beard growth can also signal the beginning of baldness. The presence of androgens; testosterone, and its related hormone DHT, cause some follicles to regress and die. In women, hormones with androgenic activity cause hair loss as well. In addition to the testicles, the adrenal glands located above each of our kidneys, produce androgenic hormones, and this would be similar in both sexes. In females, there is an additional source of hormones that can affect hair, the ovaries.

 

The hormone felt to be directly involved in androgenetic alopecia is actually dihydrotestosterone (DHT) rather than testosterone. . Among other effects, DHT decreases the length of the anagen (growing) cycle, and increases the telogen (resting) phase, so that with each new cycle the hair shaft becomes progressively smaller.

3.- Time

The reaction also requires time of exposure of susceptible hair follicles to the hormone for hair loss to begin. Hair loss does not occur all at once or in a steady, straight-line progression. Hair loss is cyclical

Stress

It is important to note that stress generally causes the type of hair loss referred to as telogen effluvium. Telogen effluvium is the reversible shed-ding of hair in the resting phase when the body senses that it needs to divert its energies elsewhere (pregnancy would be a good example of this).

 

 

 

 

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Planning Hair Surgery  in Tijuana

In your first meeting, your hair transplant surgeon will evaluate your hair growth and loss, review your family history of hair loss and ask about any previous hair replacement surgery. Your surgeon will also ask you about your lifestyle and discuss your expectations and goals for surgery.

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