A pale white spot at the corner of the mouth may be an apheresis, vitiligo, white furfura, etc.
1. Apochromatic nevus: also known as depigmented nevus, the cause of which is not yet clear. Patients may appear pale white, limited hypopigmented spots, mostly on the back, buttocks, but also on the face and other parts.
2. Vitiligo: patients with melanocyte death or stop producing melanin, can lead to pigment loss, causing vitiligo. Typical lesions are milky white or porcelain white pigment loss spots with clear borders.
3. white chaff rash: the cause of this disease is not clear, and it occurs in the face. The white furfura is a round or oval, mildly pigmented spot with not very clear edges, covered with dry, fine bran-like white flakes.
The corners of the mouth have a light white spot may also be psoriasis and other causes, if the white spot area is progressive expansion, or the body accompanied by other discomforts, it is recommended that the patient go to the hospital in a timely manner, in accordance with the doctor’s instructions for the relevant examination and treatment.