Small white spots on the body that do not hurt or itch may be caused by idiopathic hypopigmented spots, vitiligo, halo nevus and other causes. 1. idiopathic hypopigmented spots: small white spots on the body without pain or itching may be idiopathic hypopigmented spots, belonging to the skin degenerative changes in the disease. Clinical manifestations of the chest, back, abdomen and other skin appeared rice grain to mung bean size round white spots, smooth surface, edge clear, belong to the normal manifestation of skin aging, usually do not need special treatment. 2. Vitiligo: small white spots on the body painless and itchy may be caused by vitiligo, vitiligo is a common skin pigmentation disease. The skin lesions clinical manifestation of milky white, smooth surface without rash, white spots clear boundary. 3. halo nevus: there are small white spots on the body does not hurt and itch may be halo nevus, halo nevus is around the pigmented nevus of the limited hypopigmentation, after which the nevus itself can fade and the lesions will continue to develop. Mostly occurring on the back, round and oval hypopigmented spots centered on spotted nevus, white halo and pigmented nevus can occur at the same time. Small white spots on the patient’s body is not painful and itchy, exclude senile white spots, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor to clarify the cause of the disease and then treatment.