The hazards of long-term untreated baby scalp mainly include secondary infection, dry and itchy scalp, and so on. 1. Secondary infection: Scalp consists of grease, dust, etc. Babies who do not clean up their scalp for a long time will cause the growth of bacteria, fungi, etc., which will lead to secondary infections, such as ringworm, boils and so on, which need to be actively treated to prevent irreversible damage to the scalp. 2. Scalp dryness and itching: baby scalp if not cleaned in time, will gradually lead to scalp itching, dryness, peeling and other symptoms, the baby will appear scratching scalp, crying and restlessness and other discomforts. Infant scalp scale may produce some risks if left untreated for a long time. It is recommended that parents should pay attention to the infant’s head hygiene in general, pay attention to clean the skin and keep the skin so as to avoid adverse consequences.