CAUSES OF HAIR LOSS.

The hair has a cycle of growth

Our hair consists of a type of protein called keratin. A single hair consists of stem (the part we see), a root below the skin, and a follicle from which the hair root grows. The lower end of the follicle is the hair bulb, where pigment gives hair its color, that is, where the melanin is produced.

The hair has a cycle of growth and rest. During each cycle it varies by individual, but the hair growth phase, known as anágena- usually lasts two to three years. At this time, hair grows about 1 centimeter per month. The resting phase is called telogen, which usually lasts three to four months. At the end of the resting phase, the hair falls out and new hair starts to grow in its place. Thus, once the hair has fallen, the growth stage begins again.
Normally, most people lose 50 to 100 hairs a day. However, as the scalp contains about 100,000 hairs, the daily loss in principle should not be worrying.

In this sense, the progressive loss is a normal phase of human aging. However, hair loss may lead to baldness when the decline exceeds the normal rate of regeneration when the new hair is thinner than the lost hair or exit patchy hair evenly or not.



Causes of specific types of hair loss.

Pattern baldness (androgenetic alopecia). It occurs in both men and women, and is what is known as pattern baldness, when the growth time is shortened and the hairs are not as thick or sturdy. With each growth cycle, the hairs become rooted more superficially and are easier to discard. Heredity has much to do with this type of alopecia, as in cases where a family history of androgenetic alopecia increases the risk of baldness. Heredity also affects the age at which you begin to lose hair and the speed of development, structure and extent of baldness.

Scarring alopecia. This type of permanent hair loss occurs when inflammation or scarring that damage the hair follicle which prevents the growth of new hair. This situation occurs in some skin disorders, including lupus erythematosus or lichen planus, without even knowing what are the causes of this inflammation.

Alopecia areata. It is classified as an autoimmune disease, with an unknown cause, as most people who develop this alopecia generally enjoy good health, but in other cases may suffer from a disease of autoimmune basis, including abnormalities of the thyroid. Some scientists believe that there are people genetically predisposed to develop alopecia areata and that a trigger, like a virus or other agent in the environment triggers the disease. Also keep in mind that a family history of alopecia areata makes them more likely to develop it. Generally, with alopecia areata hair grows back; you can lose hair and retrieve a variable number of times.

Alopecia totalis is a complete loss of scalp hair and often begins as alopecia areata.

 Universal alopecia (alopecia universalis) is the loss of hair and body hair, the cause is the same as alopecia areata and alopecia totalis.

Telogen effluvium. This type of hair loss is mainly due to a change in the life cycle of hair growth. It may occur when some or physico-emotional systemic shock which results that the hair roots pass phase zero or rest state, at which hair growth is progressively lost occurs. In a month or two, the follicles become active again and start new hair growth. Emotional distress, such as a death in the family, or after a physiological stress, high fever, excessive or sudden weight loss, nutritional deficiencies, surgery, or metabolic disorders can cause this type of alopecia. The hair usually grows back once the cause responsible is corrected, albeit usually takes an indefinite number of months for this to happen.

Traction alopecia. A poor performance in services and hair salons or manipulations overstretched hair can cause this type of alopecia. If aggression is stopped before the scalp to heal without causing permanent damage to the root, hair usually grows back normally.



Other Causes of hair loss.

Bad nutrition. The lack of protein or iron deficiency in diet or simply a poor diet can cause hair loss. Fad diets, crash diets and certain illnesses, such as eating disorders, can cause poor nutrition and, consequently, a hair disorder.

Medicines. Some drugs used to treat gout, arthritis, depression, heart problems and high blood pressure may cause hair loss in some people. Also, doctors oral contraceptives can also cause loss of hair in some women.
Diseases. Diabetes and lupus are also associated with hair loss.

Medical treatments. The chemotherapy or radiation therapy (radiotherapy) can cause a partial or total alopecia. In these circumstances, the phase of hair growth (anagen) can be affected and, therefore, alopecia of varying intensity occur. However, when they finish treatment, the hair is regenerated gradually.

Hormonal changes. Some imbalances and / or hormonal changes also have to do with a temporary hair loss. Pregnancy, having a baby, the suspension of oral contraceptive treatment, menopause, or an overactive or low thyroid function are associated with this type of alopecia. The hair loss may be delayed by three months following a hormonal change, and it will take another three months for new hair to grow back. However, during pregnancy it is normal to have thicker hair lush, although it is more common than usual hair about three months after childbirth. In the case where hormonal imbalance is associated with an excess of testosterone, there may be a thinning of hair at the top of the scalp. Correcting hormonal imbalances may stop hair loss.

Hairdressing treatments. Some chemicals used in dyeing or bleaching hair and permanent molding and can damage the hair uncurled. Tooling and excessive brushing also can cause hair loss if it is damaged.
Scalp infection. Infections such as ringworm, can invade the skin and scalp hair, leading to hair loss. Once infections are treated, in general, hair grows back. Ringworm is a fungal infection that usually can be treated with topical or oral antifungal medications.

Trichotillomania (hair pulling disorder). Trichotillomania is a type of mental illness in people who suffer from it have an irresistible urge to pull their hair, either from your scalp, eyebrows or other areas of your body. Hair pulling often irregular bald areas on the head occur. Those affected often wear long hair to try to hide them. Causes of trichotillomania are still being researched, and its specific cause has yet been found.




HAIR LOSS IN WOMEN.

The most common type of hair loss and impoverishment of women is androgenetic alopecia, which can be seen in a hair thinning primarily at the top and sides of the head. It affects approximately one third of women, being more common after menopause, but can also begin in puberty. Normal hair loss is approximately 100-125 hairs a day and are replaced by new ones. However, the real hair loss occurs when the hair does not grow again or when the amount exceeds 125 daily. Genetically, hair loss can come from any family history.

However, both men and women can be affected by other causes of hair loss, as stated in the preceding paragraphs.



Hair loss in men.

As is known, baldness is part of the aging process of man, which is inevitable, ie, has no cure and is called androgenetic alopecia, which can be broken down into two types:

Androgenetic consisting of androgens (any of several hormones that control the onset and development of male characteristics such as testosterone) and genetic (gene inheritance family casework).
Alopecia Loss of hair-, of which there are many types of which no information in the previous sections.
However, men also can be affected by other causes not specifically male.



Hair loss in teenagers and children.

Hair loss or baldness usually occurs only in adults. However, in some cases, some young people lose their hair too, which can be a sign that something is happening.
Hair loss during adolescence can mean a person may be ill or be a sign of poor nutrition. Some medicines or medical treatments, like chemotherapy, or a tight hair braids or pigtails and can also cause hair loss. However, most of the time hair loss during adolescence is temporary and once solved the problem that causes the hair grows naturally.


In this period it deserves special attention trichotillomania and eating disorders, it is in adolescence when the occurrence of these problems can be detected and prevent them from becoming chronic.

All hair loss problems have an aesthetic solution that instantly and effectively solve the problem with absolute ease and comfort through custom hair prostheses or wigs to completely undetectable extent independently of medical treatment being performed, be compatible and complementary .

Source:http://www.pelucasmadilon.com/