Small blisters on the baby’s hands do not hurt or itch may be related to herpes sweat, ringworm, hand, foot and mouth disease and other factors, the specific analysis is as follows: 1. Sweat herpes: sweat herpes mainly occurs in the summer, belongs to a kind of skin eczema, mainly due to sweating is not smooth, so produce blisters, wait for the day to cool down will slowly disappear automatically. 2. Ringworm: If the baby not only has small blisters on his hands, but also keeps spreading to other parts of the body, it may be a bacterial or viral infection caused by ringworm. 3. hand, foot and mouth disease: hand, foot and mouth disease in the small blisters are mainly distributed in the oral cavity, palms, feet and other locations, usually does not automatically disappear. Baby hands with small blisters do not hurt and itch may have other reasons, it is recommended to go to the hospital in a timely manner to conduct relevant examinations, clear cause of the disease after active symptomatic treatment.