Red spots on the back of baby’s head may be caused by baby eczema, hemangioma and other reasons, which are treated by observation, reducing local friction or medication and laser. 1. Infantile eczema: infants who ingest food that may cause allergy may stimulate the skin to trigger eczema, and the eczema area may also appear red spots, usually let the baby’s head to reduce the friction, sweating in time to clean up, the symptoms of serious cases apply glycerine, Dinocaprolactone cream to relieve. 2. Hemangioma: red spot on the back of baby’s head may also be hemangioma, which is a vascular malformation formed by the proliferation of blood vessel cells during the embryonic period, most of the hemangiomas may subside with the growth of age, therefore, it is possible to observe and follow up the treatment in the infancy period, such as the obvious increase in the size of the tumor, and it cannot subside by itself, it can be treated with Propranolol and interventional therapy under the guidance of the doctor. Erythema on the back of the head of infants has many causes, it is recommended to go to the dermatology department in time, and follow the doctor’s instructions to be targeted treatment.