Newborns with blisters are considered to be related to eczema, papular urticaria, chickenpox and other factors. 1. Eczema: may be due to a combination of internal and external factors, such as food allergies, excessive cleaning, mechanical friction, hot and cold stimuli, etc., may cause newborns to develop symptoms of eczema, manifested as localized long blisters. 2. papular urticaria: some newborns may be stung by insects, which may cause papular urticaria, and then there will be localized blisters. 3. Chickenpox: If the newborn has chickenpox disease caused by varicella zoster virus infection, blisters may also appear. Newborn long blisters, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.