Eight-year-old girls pulling out their hair to eat may be caused by psychological factors, nutritional deficiencies, parasitic infections, etc., and can be treated through psychological counseling, nutritional supplementation, and antiparasitic treatment. 1. Psychological factors: If an eight-year-old girl is in a situation of long-term psychological anxiety and insecurity, she may pull out her hair and eat it to gain a sense of security and fulfillment. You can relieve the symptoms by communicating, listening to music and other ways to distract your attention and reduce anxiety. 2. Nutritional deficiencies: If you are often picky about what you eat, insufficient food intake can cause malnutrition, which can lead to a lack of calcium, zinc, iron, etc., and the phenomenon of hair pulling and eating. You can take oral medication to supplement, such as calcium gluconate, multi-dimensional elemental tablets. 3. Parasitic infection: parasitic infection may also lead to eight-year-old girl pulling hair eating, can be treated by oral antiparasitic drugs, such as albendazole tablets, compound mebendazole pills and so on. When the eight-year-old girl pulling out the hair to eat, it is recommended to go to the hospital in a timely manner, to identify the cause of the cause of the medication as prescribed by the doctor, do not take the medication privately.