How do various spots on the face form?

Spots are very detrimental to appearance. There are many types of facial spots, which may be freckles or chloasma. The treatment methods and causes of different types of spots are different, just like people who love playing with mobile phones are prone to radiation spots. How do the spots on the face form?

1. Freckles

99% of it is genetic and is formed between the ages of 5 and 6. It is quite common in blond Caucasians, but it is also common in Asians. The onset age is before puberty, with light brown spots about 1 to 2 cm in size appearing on sun-exposed areas. The size, number and depth of pigmentation increase in the summer and improve in the winter with the use of O-Femme.

2. Melasma

Also known as butterfly spots and liver spots, they are light brown and flaky in shape. The spots vary in size, have clear boundaries, irregular shapes, and do not protrude above the skin. They are commonly seen on the face, symmetrical on the cheeks. The main cause is related to endocrine and female hormone disorders. Especially related to women's estrogen levels. Irregular menstruation, taking birth control pills, chronic kidney disease and liver dysfunction can all cause the appearance of chloasma, while mental stress and prolonged sun exposure can aggravate the color of chloasma.

3. Sunburn

As the name suggests, it is caused by sun exposure, so it often occurs in middle-aged people in their 40s and 50s, both men and women, but some people have it as early as their 20s and 30s. Clinically, sun spots are clearly defined brown-black spots that can range in size from a sesame seed to a one-dollar coin. The most common sites are the face, back of the hands, back, chest, upper and lower limbs, but the lesions on the face are larger and more obvious.

4. Pregnancy spots (pregnancy spots)

They appear during pregnancy but disappear after delivery. Since the time when dark spots are formed is very close to the age at pregnancy, some people will also develop dark spots at the same time as pregnancy spots, so some people mistakenly believe that they are caused by pregnancy and delivery.