The following conditions are common: 1. Food spots, mostly caused by spleen and stomach disharmony and weakness, mostly accompanied by loss of appetite, depression, little movement and other symptoms, usually weak, to improve the diet, if necessary, you can take oral pediatric spleen pill, pediatric massage and other treatments. 2. Worm spots, mostly accompanied by abdominal pain, itching around the anus and other performance, you can test the stool routine to check the worm eggs clear, if necessary, to give symptomatic treatment. 3. If necessary, oral anthelmintic treatment can be given. 3. zinc spots, mostly caused by picky eating and partial eating caused by trace elements deficiency, can go to the hospital to test trace elements clear, if necessary to give symptomatic treatment. 4. special skin diseases, such as psoriasis, should pay attention to observe whether other parts of the body have the same white spots, whether there is an increase in white spots, etc., if necessary, go to the hospital for consultation.