Vitiligo is a common acquired disease of limited or generalized skin pigmentation loss. It is caused by loss of melanocyte function in the skin, but the mechanism is not clear. It can occur on all parts of the body, commonly on the back of the fingers, wrists, forearms, face, neck, and around the genitalia. The most important thing is that you can get a good idea of what you want to do.
The early symptoms of vitiligo are as follows: 1, special performance: edge elevated white spot, in the clinical this kind of white spot is more common, in the discoloration is not obvious edge has a kind of semi-annular red halo wheel.
2, look at the onset of the site: face, neck, belt, sacral tail, back of the fingers and toes, female bra strap or button pressure, hernia support, anal opening, female perineum. This is because the exposed parts of the skin are easily exposed to sunlight, after sun exposure, one due to melanocyte hyperfunction, prompting its consumption and early decline, but also may be due to the cell itself synthesis of melanin intermediate material overproduction, or accumulation and thus damage to melanocytes, and thus the occurrence of white spots.
In a few cases, the white spots are mixed with follicular punctate pigment proliferation, which can increase, expand and fuse with each other to form islands, and there is no atrophy or desquamation of the affected area except for pigment loss, and the hairs on the white spots can lose pigment or even turn completely white, while there are also those whose hairs remain unchanged for a long time.
4, itching: vitiligo early skin is not itchy or itchy very slight, the skin has a white class appear, the number of less 1-2 pieces or so. Most of them appear on the skin that is often exposed to the sun.
The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The majority of cases tend to gradually increase and expand, adjacent white spots can be fused with each other to form irregular swaths, generalized all over the body, such as map-like, early symptoms of vitiligo sometimes normal skin remains in the white spots, so that they are mistaken as pigmentation, such as: occurring in the face, often mistaken for chloasma. This is also an early symptom of vitiligo.
The external symptoms of vitiligo are: the skin color at the skin damage is fading, turning white, grayish white, milky white or porcelain white, etc., generally no conscious discomfort, a few cases before the onset or at the same time part of the itchy feeling, there are patients in a stable condition due to some factors itchy feeling, followed by the expansion of the white spot or the appearance of new white spots, individual patients with hair whitening. The vitiligo is usually found on the face, neck, back, trunk and external genitalia. It can occur in any part of the skin of the whole body. The most common areas are the head, face, neck, buttocks, and back of the hands. It is easy to be exposed to sunlight and friction damage.