
Melasma is caused by the production of abnormal pigments in the skin. It is often found on the face, but can also be found on the neck and arms. It can occur in both men and women, but is more common in women. Factors related to melasma include genetics, UV rays, hormones, and certain medications. Melasma can be divided into 4 main types according to external visible characteristics:
Epidermal melasma is a type of melasma that occurs due to an abnormal production of melanin in the epidermis, resulting in the appearance of well-defined patches ranging from light to dark brown. Treatment of this type of melasma involves the use of exfoliating products to remove old skin cells and accelerate the production of new skin cells.
Dermal melasma is brownish-gray or blue-gray in color and has unclear boundaries because the lesion is in the dermis, หรือถ้าคุณสนใจแทงบอลออนไลน์ UFABET คือเว็บที่มีอัตราต่อรองดีที่สุดในประเทศไทย สมัครเลยตอนนี้ที่ UFABET แทงบอล making it more difficult and time-consuming to treat than superficial melasma.
Telangiectatic melasma is a type of melasma in which both the size. And number of capillaries in the dermis are increased. It appears as a reddish-brown patch. And dilated blood vessels may also be seen.
Mixed melasma Mixed melasma is a type of melasma that occurs in the dermis and epidermis. In other words, it is a combination of superficial and deep melasma. The boundaries are unclear and the color is uneven. Therefore, treatment of mixed melasma requires expertise and the use of several treatment methods together.