White spots on the back may be caused by lichen planus, anemic nevi, vitiligo and other reasons.
1. lichen planus: white spots on the back may be lichen planus caused by malassezia infection. If the back sweats more, usually do not change clothes, do not take a bath, it is easy to cause local Malassezia breeding, resulting in the back of some scattered or fusion, the surface covered with chaffy scales of white spots of symptoms.
2. Anemic nevus: If white spots appear on the back of the skin at birth or during childhood, it may be a local hypopigmentation of the skin caused by abnormal development of vascular tissues, i.e. anemic nevus. It manifests itself as one or more pale white spots with clear boundaries and irregular shapes.
3. Vitiligo: If the back of the white spots, the surface is smooth, no dandruff, the border is clear, the shape is irregular, the color is porcelain white or milky white, the hair is also white, the surrounding color instead of deepening, and the white spots have a tendency to gradually expand, may be vitiligo.
There may be other reasons for the white spots on the back, and it is recommended that patients go to the hospital in time for early formal treatment.