Six types of common spots on the skin
Let's talk about the classification of stains first.
Levels can be divided into light spots and deep spots according to the levels of skin.
Deep skin spots:
Chloasma, coffee spot, birthmark, etc.
Superficial epidermal spots:
Freckle, senile plaque, sunburn, etc. Everything is simple, and the deeper the skin, the harder it is to remove spots.
Activity is divided into active spots and qualitative spots according to the activity of spots.
Activity point:
Active, free between dermis and epidermis,
Generally, it is caused by endocrine disorders, such as chloasma, pregnancy spots and sunburn.
Qualitative spots:
Without vitality and fixed points,
Most of them are caused by heredity and age, such as freckles, senile plaques, pigmented nevus and so on.
Note: if it is an active spot, it will be deeper and more if it is not maintained and suppressed.
Chloasma:
Reasons for formation:
The external cause is mainly ultraviolet damage.
Internal factors are mainly related to endocrine and hormonal factors, such as gynecological diseases or emotional instability.
Features:
① Mainly distributed symmetrically in zygomatic region, nose and mouth region and cheek region.
② The patches of different sizes are mainly brown or brown in color, with irregular shapes and obvious boundaries.
③ Generally, the color of spots will increase in summer and become lighter in winter.
Pregnancy spots:
Reasons for formation:
Mainly due to the increase of progesterone and estrogen during pregnancy, the function of skin melanocytes is enhanced, leading to skin pigmentation and thus long spots.
Features:
① It is mainly distributed symmetrically on the bridge of the nose, cheeks or forehead, showing a butterfly shape.
② Some pregnant women also have spots around their foreheads, noses and mouths, and the spots are irregular.
Sunburn:
Reasons for formation:
It is mainly caused by sun exposure or radiation from computers, mobile phones and other electronic equipment.
Features:
① The color is mainly light brown or dark brown, and the size is about rice grains to pentagonal coins.
② The initial symptoms are pain, itching, peeling, and later, pigmentation is formed.
③ It is common in face, back of hand, lateral forearm and anterior leg.
Liver spot:
Reasons for formation:
It is mainly caused by stagnation of liver qi and discomfort of liver qi.
Features:
① The lesion of liver spot is yellowish brown or dark brown plaque.
② It is often distributed symmetrically in the lip corner, but it can also involve the wide circumference, forehead and alar edge, which is generally obvious, without conscious symptoms and general discomfort.
Freckles:
Reasons for formation:
Most of them are hereditary, and there is also atavism. Sunlight can also promote or aggravate its formation.
Features:
(1) attention is easy to focus on the nose.
② Sesame seeds are mainly round or oval with smooth surface.
(3) The color will deepen after sun exposure, become lighter in summer and deepen in winter.
Age spots:
Reasons for formation:
With the increase of age, the metabolic function of cells decreases, and the fat in the body is easy to oxidize, resulting in senile plaques, which cannot be excreted, so they deposit on the skin and form senile plaques.
Features:
① It is common in the elderly over 45 years old.
② It can occur in any part of the body, especially in the face or trunk.
③ The color is brown, brown or black, with clear boundaries and slightly raised patches on the surface.
Spots:
Reasons for formation:
① Excessive sun exposure ② Endocrine disorders ③ Chronic liver and gastrointestinal diseases.
Features:
① The skin color is darker, and the local skin color is darker than normal skin.
② It is common in exposed parts of skin, face, hands and neck.