Most types of hair loss are not medical conditions, and completely normal processes associated with aging or a change in the activity of hormones and neglected for many general practitioners because they "are not life threatening. However, the thin line between normal and excessive hair loss is a concern for many people, therefore the correct diagnosis and care may alleviate concerns during the stages of partial baldness, total shedding of hair thinning. But the psychological effects are far greater.
One form of local baldness is alopecia areata. It appears suddenly. Treatment is difficult and prolonged, sometimes alone and disappears without lechenie.Kogato alopecia is caused by an infectious agent - gabchki and micelles, using antifungal medication, applied topically or in general. Infection is by direct contact of man with infected animals.
Brief history of alopecia areata
Even back in 1760 has used the term alopecia areata and then, as now in some cases, this condition has been associated with fungal or bacterial infection. But when endocrinology (science that deals with the activities of hormones) came into the world in the late 19 th century, was discovered the relationship of hair loss thyroid. Unfortunately, this does not give an exhaustive explanation of the problem, because other systems work on balance and imbalance. Then arises the view endorsed by many states that all forms of alopecia areata arising from the same problem - "focal sepsis teeth or respiratory tract, and sometimes gastrointestinal - this is considered the cause in most cases.
This can be explained prior to trace the growth cycle of the root of human hair. There are three stages or phases of this cycle known as: anagen (growth phase) Katogen (transitional phase) and telogen (resting phase).
Each different phase lasts longer, and while a small number of hairs that are in the resting phase (approximately 5%) / are those who fall off a day /; slightly larger number of hairs in the transition phase (approximately 8% ), a major part of our hair (approximately 87%) is in the phase of growth (anagen), which can last from three to ten years. This is different for different nations, very few adults have hair to the ground, bearing in mind that almost the entire population has hair to his shoulders or waist.
During alopecia areata hair strands fall while still in growth phase (ie phase still takes place) and when starting or katogennata transitional phase reaction occurs. At that time, interestingly, stopping the formation of color pigment. Telogen, the resting phase, as always allows hair falleth, but once the anagen phase occurs, stop and ruffled the hair root is returned to the resting phase.
This is probably why the hair root is not destroyed and is ready again to "born" hair when appropriate conditions arise that allow the cycle to follow a normal rhythm again. Despite suffering from alopecia areata may not realize that something was, in most cases the root of the hair continues to follow its imperfect cycles, until something triggers things again in the usual way.
Manifestation of alopecia areata
Shedding of hair is sharply distinct areas, especially on the scalp or beard. Can occur from mild to severe itching, before shedding of hair. Some people initially may appear inflamed areas, accompanied by redness and pimples. The hair will usually begin to grow again within 2-4 months - will appear small hairs (may be white again) in downtown affects place and gradually filled the area. It is important to note that most people with alopecia areata are healthy and there are no other diseases that are related to fall off.
One indicator of the presence of alopecia areata is the presence of small broken hairs in the scalp surface. Can be found on the edges of the active spot (where the hair continues to fall).
Other types of temporary shedding of hair
Tapeworm can cause small round or oval spots that are very similar in appearance to alopecia areata. Traumatic hair loss, cracking and the formation of flakes may occur as a result of scratching the scalp, and the bad haircut.
Trihotilomaniyata is not much known state (because its sufferers do not want to be seen shedding and thinning hair). This is the tendency to skubene hair from the scalp, which is very painful for the sufferer and his relatives.
Current research
Alopecia areata, totalis and universalis
Are generally considered as hereditary factors, and hypersensitivity to certain antigens influence how we proceed and what will be the end result of alopecia areata, but mechanisms triggered it remains a mystery. Recent studies, however, strongly support the theory that T-lymphocytes as well as existing agents are implicated in the onset of alopecia areata, and also on the duration of alopecia totalis and universalis.
Unfortunately, developing alopecia areata before puberty has worse consequences, and those with alokalno state of hypersensitivity to certain antigens.
No comments:
Post a Comment