Little boy foot odor is firstly considered to be caused by physiological factors such as usual shoes and socks are not breathable, do not pay attention to foot hygiene, and secondly considered to be caused by tinea pedis. General measures and medication can be taken to improve the situation. 1. Physiological factors: If the shoes and socks that the boy usually wears are not breathable, resulting in a large amount of sweat secretion from the feet, or if he usually does not have the sense of cleaning the feet, resulting in a long time accumulation of sweat secreted by the skin of the feet, then it will lead to smelly feet. At this time, parents can help their children to change shoes and socks, avoid letting children wear breathable sneakers, nylon socks and so on. At the same time, usually cultivate the child’s sense of cleanliness, let the child every night or after exercise with warm water to wash their feet, to avoid the accumulation of sweat for a long time, can effectively improve the phenomenon of foot odor. 2. Tinea pedis: the disease is mainly due to fungal infection, is one of the common clinical skin diseases, often leading to patients with foot skin peeling, dry, vesicles itching and other symptoms, and often accompanied by a foul odor, resulting in the phenomenon of foot odor in young boys. Can follow the doctor’s instructions to use miconazole cream, terbinafine ointment and other antifungal topical drugs coated in the child’s feet lesions for treatment, if the child’s condition is more serious, can follow the doctor’s instructions to itraconazole, terbinafine and other drugs oral treatment. At the same time, parents should do a good job of cleaning the boy’s feet to avoid repeated attacks. Parents are advised to take their children to the hospital as soon as possible, to clarify the cause of the disease and then use medication under the guidance of the doctor for treatment.