Hair loss in children is usually not a sign of leukemia. Leukemia, commonly known as blood cancer, is usually preceded by pallor, dizziness, headache, prolonged low-grade fever and irregular bleeding from the nose and gums, and can be diagnosed by combining clinical tests. There are many reasons for hair loss in children, which need to be analyzed with specific situations. If it is newborn hair loss, it is mostly due to the loss of fetal hair, which is a normal physiological phenomenon. If the physiological reasons are excluded, pediatric hair loss is mostly considered to be related to the following reasons: 1, trace element deficiency: such as calcium deficiency, common in infancy, can appear occipital baldness with night sweats, night crying and other symptoms, the need for appropriate supplementation of trace elements, such as oral calcium gluconate and other drug therapy; 2, fungal infection: such as dermatophytosis, the scalp can appear round patchy hair loss, accompanied by local redness, itching, the need to follow medical advice for antifungal treatment; 3 The hair follicles secrete too much oil, poor cleaning can cause the pores to be clogged and hair loss can occur. It is recommended to pay attention to the child’s head care, cleaning the hair every 2-3 days; 4, due to excessive mental tension: parents can assist in adjusting their emotions and take the child to outdoor activities. Usually pay attention to the reasonable feeding of the child, to ensure its nutritional balance, is conducive to avoid the occurrence of hair loss phenomenon. If the amount of hair loss is high, you should be admitted to the hospital as soon as possible for examination and active treatment after clear diagnosis.