Sweating on the soles of the feet can be caused by hyperhidrosis, fungal infections, autonomic dysfunction, diabetes and hyperthyroidism. 1. Hyperhidrosis: If you often do strenuous exercise, wear shoes and socks that are not breathable or do not do a good job of cleaning your feet, it is easy to cause hyperhidrosis of the feet and a lot of sweating. 2. Fungal infection: If the soles of the feet are infected by fungus, resulting in foot odor, the substances produced by the fungus will stimulate the local sweat glands, resulting in profuse sweating. 3. Vegetative nerve dysfunction: If the body’s vegetative nerve dysfunction leads to sympathetic nerve excitation, it will make the innervated sweat glands function abnormally, so there will be a large amount of sweating. 4. Diabetes mellitus: If you have diabetes mellitus, it will easily lead to vegetative nerve dysfunction, so you may also have lower sweating phenomenon. 5. Hyperthyroidism: hyperthyroidism patients due to the increase in basal metabolic rate, the body heat production will be more, so there may also be the bottom of the feet sweating. It is recommended to pay attention to foot cleanliness and hygiene, but also to choose comfortable and breathable shoes and socks, if the bottom of the feet sweating for a long time did not improve, you need to actively go to the regular hospital, to find out the specific reasons, and then targeted to deal with.