The types of spots on the face include freckles, chloasma, pigmented nevus, etc., which are related to heredity, ultraviolet irradiation, endocrine factors, melanocyte aggregation and other reasons.
1. Freckles: they have obvious genetic tendency; ultraviolet irradiation can lead to pigmentation and deepening.
2. Melasma: it is easy to appear in people with family history; ultraviolet rays in sunlight can cause and deepen melasma; pregnancy, taking contraceptive pills and other causes of increased estrogen level in the body can induce melasma.
3. Nevus pigmentosus: During the movement of melanocytes from the neural crest to the epidermis, accidental abnormality may occur, resulting in localized aggregation of melanocytes and the appearance of facial spots.
It is suggested that those who have spots on their face should go to the hospital in time to clarify the cause of the disease and carry out standardized treatment under the guidance of doctors.