Fire boils on the head may be related to poor head hygiene, or may be caused by malnutrition or other skin diseases. 1. Poor head hygiene: If you don’t clean your scalp properly or stay in a windy and sandy environment for a long time, it is easy to cause the pores of the scalp to be blocked by grease and dust, which induces bacterial infections, thus resulting in the growth of fire boils on the head. 2. Malnutrition: Some people suffer from long-term malnutrition, which leads to lower resistance of the body and easy to be infected by pathogenic bacteria, which may cause fire boils on the head. 3. Other skin diseases: Eczema, acne and other skin diseases commonly found on the scalp will easily cause the protective barrier of the scalp to be damaged, which may lead to boils on the head. 4. Endocrine factors: teenagers are prone to fire boils on the head, which may be related to the endocrine hormone level disorders in the body, and the incidence of fire boils on the head decreases significantly after adulthood. Fire boils on the head may also be related to other factors, so it is recommended to consult a doctor as soon as possible to confirm the cause and then give targeted treatment and adjustment.