Stinky and sweaty feet may be caused by physiological factors such as long term wearing of breathable shoes, or it may be caused by diseases such as athlete’s foot, hyperhidrosis, and hyperhidrosis. 1. Physiological factors: If you wear impermeable shoes for a long time, you may put your feet in a hot and stuffy environment, which may lead to smelly and sweaty feet after walking or exercising. 2. Tinea pedis: the onset of tinea pedis is usually associated with red trichophyton, trichophyton fungus and other dermatophytes, hot and humid environment, impaired immune function and other factors may also trigger the disease. Tinea pedis is clinically manifested as sweaty feet, blisters, and may be accompanied by bad odor. 3. Hyperhidrosis: the cause of hyperhidrosis may be related to heredity, drugs and diseases, and its clinical symptoms include increased sweating of the whole body or local area, which may be accompanied by bad odor and whitening of skin maceration. 4. stinky sweating: stinky sweating is mostly related to the abnormal secretion function of parietal sweat glands, bacterial reproduction and other factors, the clinical manifestation of armpits, soles and other places will appear sweaty, but also emit pungent odor. There are many reasons for smelly and sweaty feet, after excluding physiological factors, it is recommended that patients seek medical examination to clarify the cause of the disease.