dark spots on the skin
Introduction
Introduction Black spots can be divided into two kinds of innate and acquired. A large part of congenital pigmentation is a birthmark. Most of them have black or blue-black large patches on the face or body, called Ota's mother spot or Ito's mother spot, and the other part is in the oriental face. Pigmentation (the humeral mother's spot), although it is congenital, but it is not born at birth, it will slowly emerge in adulthood about 20 to 40 years old, and it will be pregnant or hormonal imbalance. Other factors such as internal factors or sunlight can deepen the color, and other congenital ones are coffee spots, freckles and various black mites.
Cause
Cause
Black spots, also known as "spots", occur mostly on the face and are common in women. They are a "disease" that seriously affects people's aesthetics and upsets. Studies have shown that there are many causes of facial skin dark spots, which are summarized as follows:
The skin of people's face is exposed to the sun for a long time, especially when it is directly exposed to ultraviolet rays without being covered, and it is easy to cause pigmentation. After using inferior cosmetics or long-term use of cosmetics that are inconsistent with their own skin properties, some people may have allergic reactions or inflammation on their skin, and may also cause pigmentation to form dark spots.
Female endocrine (hormone) disorders, digestive disorders (such as long-term constipation), and liver dysfunction, excessive mental stress, severe sleep deprivation, anemia and other reasons can cause dark spots.
In addition, premature aging of the skin is also one of the important causes of dark spots. The epidermal cells of the face are usually replaced every 25 to 30 days, such as the skin metabolism is strong, even if the pigmentation will disappear naturally with the loss of the stratum corneum in a short period of time. With the increase of age, the skin's metabolism is declining, and the natural repair ability of the skin's stratum corneum is reduced. As a result, the pigmentation of the skin is difficult to subside and becomes dark spots.
Examine
an examination
Related inspection
Fungal histopathology skin fungal microscopy
A large part of congenital pigmentation is a birthmark. Most of them have black or blue-black large patches on the face or body, called Ota's mother spot or Ito's mother spot, and the other part is in the oriental face. Pigmentation (the humeral mother's spot), although it is congenital, but it is not born, it will slowly emerge in adulthood after about 20 to 40 years old, and it will be pregnant or hormonal imbalance. Inorganic factors such as internal factors or sunlight can deepen the color, and other congenital ones are coffee spots, freckles and various black mites.
Diagnosis
Differential diagnosis
Darkening of the skin: pigmentation, which is dominated by an increase in the number of melanocytes, can cause skin darkening.
