White spots on the arms may be associated with skin aging, vitiligo, white chaff rash and other reasons.
1. skin aging: with the age change, the skin gradually aging, its metabolism is relatively poor, when subjected to long-term ultraviolet irradiation or trauma and other stimuli, can be induced by the local melanocyte reduction or disappearance, the symptoms of white spots on the arm.
2. Vitiligo: autoimmune factors or genetic factors can induce vitiligo, manifested in the destruction of melanocytes more, so in the epidermis can appear white spots of symptoms.
3. white furfur: long-term diet irregularities, low resistance or sun exposure and other reasons can be induced by white fur, appearing on the arms of the phenomenon of white spots.
White spots on the arm may also be related to other reasons, it is recommended to go to the hospital in time to find out the cause, early treatment, in order to avoid adverse effects.