Hypopigmented leukoplakia is a common skin disorder caused by a decrease in melanin in the skin, usually found on the extremities. The patches are mostly oval in shape, vary in size and usually do not fade easily. If you want to eliminate it, you need to have a clear and specific diagnosis first, and then choose a specific treatment. The common causes and treatments are as follows: 1. Vitiligo, pityriasis simplex: the hypopigmented white patches caused by these factors can be promoted with topical creams such as tacrolimus ointment and hydrocortisone butyrate cream under the guidance of doctors to promote local pigment recovery; 2. White patches in middle age: it is a kind of no self-conscious symptoms It is a kind of discolored spot without conscious symptoms, which is medically called senile leukoplakia. It occurs most often on the extremities, especially on the thighs, and usually not on the face. Age spots belong to a phenomenon of skin aging, which is a normal physiological phenomenon, and generally do not require special treatment; 3, lichen planus: also known as sweat spots, is a superficial fungal disease, and the damage presented on the skin is mainly light white. It is generally a round spot with unclear edges and a lot of scales on the surface, and the presence of fungi can be detected by microscopic examination. It occurs mostly on the upper part of the body, with the upper extremities being the most common. If it is diagnosed as sweat spot, it should be treated with antibacterial therapy, clean the skin well and avoid pressure. When the area is small, ketoconazole and selenium disulfide lotion can be used for topical treatment; for patients with larger areas, oral itraconazole and fluconazole can be used for treatment under the guidance of a doctor. In life, you must develop good personal hygiene habits to keep your skin dry and clean. Try to choose cotton or linen clothes to keep sweat absorption and ventilation. The daily necessities you use should also be disinfected more often to prevent inflammatory infections.