Common causes of babies scratching their heads and ears include overheating, eczema, otitis externa or otitis media. 1. overheating: sleeping in the external environment is too hot or wear too thick, resulting in excessive sweating, stimulate the skin can also cause itching, so will produce scratching action. 2. Eczema: baby neck, head and face eczema, often accompanied by itching, resulting in the baby will scratch. 3. Otitis externa or otitis media: the baby’s external ear canal is narrower and secretes more cerumen, which is easy to cause otitis externa; otitis media will be accompanied by fever, ear pain, pus and other manifestations. Both cause discomfort in the baby’s ears, resulting in head scratching and ear scratching. There may be other reasons for babies scratching their heads and ears, so it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.