Children’s eyebrow hair loss may be caused by physiological metabolism, or it may be a symptom of diseases, such as hypothyroidism, baldness, and so on. 1. Physiological metabolism: children are in the rapid stage of physical development, and eyebrows have different growth periods, so in the normal process of growth and development, children’s eyebrows will naturally fall off. 2. Disease factors: When children have hypothyroidism, all body functions will be seriously affected, hindering children’s growth and development, and showing symptoms such as roughness and shedding of hair. Patchy baldness is a disease that mainly manifests itself in localized patchy hair loss, but it can also involve the total loss of eyebrows and armpit hair. There may be other reasons for children’s eyebrow hair loss. 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.