1, freckles:
Most of them are hereditary, often appearing among brothers and sisters, but not at birth. It was not until adolescence that they gradually appeared and became obvious. It is distributed on the face and all parts of the body, such as millet granules, with light brown and dark brown, round shape and most hands and feet. Congenital constitution, traditional treatment is difficult, and it can only prevent aggravation or blackening. You can apply sunscreen or oil to avoid direct sunlight.
2. Water shortage point:
Long-term water shortage or malnutrition (improper maintenance) of the skin leads to cell damage or even death due to water shortage or malnutrition, and causes poor melanin metabolism, forming irregular spots of large and small, which are found in almost everyone, but only in a small number. If you don't take care of it for about 3 years at ordinary times, it will become mixed spots or dermal spots. If you take care of it for about 5 years, be sure to inform the guests that the sooner they take it clean, the better.
3, senile plaque:
Floating on the surface, due to long-term loss of maintenance, skin aging or ovarian function damage. Uterine tumor of the eldest son happens to everyone.
4, sunburn:
Excessive sun exposure increases melanin in the bottom layer of the skin and gradually accumulates on the top layer of the skin. Most of them are flat or blocky, and the color is tan or brown. This kind of sunburn is relatively simple to treat. If you apply nutrients and water regularly, it will recover slowly, and avoid exposure to the sun. Eat more fruits and vegetables containing vitamin C, drink more water, strengthen metabolism and make pigments fade.
5, stria gravidarum liver spots:
Also known as uterine liver spots, most of them will deepen in color when menstruation comes, and tumors in reproductive organs and oral contraceptives will also lead to spots. It's brown spots caused by pregnancy. This kind of spot, also known as pregnancy spot, occurs in 2~3 months of pregnancy and disappears naturally 1~3 months after delivery. Some fashions remain on the face and have not completely disappeared. At this time, it is necessary to massage, maintain and bleach the face for a long time, so that the pigment gradually fades away.
6, dark spots:
Most of them are caused by long-term use of inferior cream containing mercury, arsenic, or an acid, fruit acid (bad skin-changing) or betel nut leaves, especially perfume, rouge, blush, foundation and powder cake. In recent years, the number of patients has gradually increased. Therefore, the competition in cosmetics business is only for profit. Some manufacturers add mercury toxin to cosmetics and creams, claiming that they can cure black spots, blisters and powder cakes. But it can only be bleached temporarily, which will destroy the red blood cells of the skin and turn the fragile skin into dermatitis or melanosis. More seriously, the use of mercury-containing ointment will enter the body through the pores of the skin, damaging the liver and kidney function. The sites that occurred were all on the forehead, cheekbones, behind the ears, cheeks and neck. The color is light brown and will gradually become dark brown. In addition to cosmetics, sometimes due to partial eclipse, excessive fatigue, lack of vitamin A and vitamins A, C, D, E, etc. If the color is brown, it is epidermal spot. If not treated immediately, melanin will go deep into the dermis, and the color will deepen to black or black-gray, which is dermal spots.
7, blood spots:
As the name implies, the location of the zygomatic plaque is mostly in the zygomatic bone. Some people's spots may also appear on both sides of the upper forehead, and their colors are generally gray or brown or even blue-black. The skin pathological manifestations of zygomatic spot are: there are wandering melanocytes in the upper dermis. Because of the re-refraction of melanocytes in the dermis when the sun shines, the cheekbone spots appear gray-blue. Because zygomatic plaque is melanocyte hyperplasia in dermis, topical antiplaque drugs are ineffective.
8, liver spots:
Also known as chloasma, most patients are middle-aged women, especially after menopause. Cheeks, foreheads, eyes, nose wings, lips and chin are all exposed parts of the skin, especially cheeks, which will form bilateral symmetry, with different sizes and irregular shapes. Spots are mostly light brown or dark brown, and some cross the bridge of the nose like butterflies, so some people call them "butterfly spots".