A small white bulb at the end of a hair fall is not in itself a cause for concern. It only indicates that the follicle through the different phases of the growth cycle before the strand was paid. Although this is a normal process (even in the absence of any type of hair loss disorder), the white bulb is usually not noticed until or unless the shedding becomes excessive - encouraging to examine their fallen son.
If a disease is suspected, an examination of the bulb can provide clues about the professional type and cause of the disease. The shape, size and color will determine at what stage of the growth cycle of hair was before falling, and if abnormalities are present.
The first phase of the cycle, the period of active growth, is called anagen. Meanwhile, the hair is firmly anchored deep into the follicle. Removing an anagen hair from a healthy scalp require a business, strength courage. Reveal the tip of a small rounded or slightly elongated, pigmented bulb which can be surrounded by a gelatinous sac-like envelope.
After each coat has reached its full growth potential of the follicle moves in what is known as "catagen". Although catagen lasts only one to two weeks, many changes take place during this period to prepare for the formation of white bulb. The follicle shrinks below. The inner sheath disappears. Pigmentation ceases. Cellular material (such as that of the outer sheath) which is no longer necessary to maintain growth, begins to migrate toward the base of the strand.
Once all changes have taken place between the follicle catagen what is known as "telogen". In early telogen remaining cells which are not required to migrate to the base of the hair. Because pigmentation ceased, these cells will be unpigmented. Unpigmented cells come together to form the "mysterious white bulb, which acts as an anchor to keep the hair in the follicle while it" rest "for about three months before being released. Telogen phase is also called the rest period.
Any hair that falls with a white bulb attached indicates that cycled through the telogen phase before falling. Because of the shape, these strands are also called hair club. This feature will be present in the normal daily excretion. Unless excretion is excessive there is no reason to worry.
The most common condition that causes excessive shedding with a white bulb attached is telogen effluvium. Because every follicle at any stage of the growth cycle can be affected, fallen son may be of different lengths.
With alopecia areata hair is often paid during the telogen phase, but in some cases it may be paid during the anagen or it may break. The strands may be assigned an "appearance of exclamation." A small portion of the right bank at the scalp becomes very thin giving the appearance of an exclamation point. Because the hair is very thin at this stage It can also come off. Though the most common form of alopecia areata causes bald spots, there are other variants of this condition cause other more serious reasons for baldness.
The absence of a visible white bulb may indicate that hair fell out during the anagen phase, as in the anagen syndrome and loose anagen effluvium. It could also indicate that he has broken rather than fell.
The size, shape, color and condition of the bulb can provide valuable information for the diagnosis of hair loss professional look.
