Fishy smell of the feet, the possible clinical reasons are not in place hygiene cleaning, ringworm, metabolic diseases and so on. 1. hygiene cleaning is not in place: part of the population lacks good hygiene habits, feet for a long time without cleaning, it may cause local bacterial growth and abnormal odor. 2. Tinea pedis: this situation is mostly related to the feet by fungal infections, fungi will be on the feet of the skin invasion and damage, easy to secondary bacterial infections, clinical manifestations of feet flaking, itching, odor. 3. Metabolic diseases: this situation is mostly seen in people with diabetes, the group of people whose own immunity will be reduced, the peripheral nerves of the feet and the surface tissue in the high sugar state prone to damage, which can be manifested as foot infections, foot tissue ulceration and pus, etc., and will be accompanied by a bad smell, itching, and pain and other symptoms. If the symptoms are caused by disease factors, it is recommended to go to the hospital for examination to clarify the diagnosis, so as to carry out targeted treatment.