Smelly feet after pregnancy may be caused by excessive sweating, tinea pedis, diabetes and other factors. 1. Excessive sweating: hot weather, breathable shoes and socks, exercise and other factors will lead to increased secretion of sweat from the feet, which is conducive to the reproduction and proliferation of bacteria and fungi, breaking down the urea in the sweat to appear as a symptom of smelly feet. 2. Tinea pedis: When fungal infection occurs in the feet during pregnancy, it will produce odor and lead to smelly feet. 3. Diabetes: When diabetes occurs in pregnant women, it can lead to smelly feet due to factors such as vigorous metabolism, increased sweat secretion, and fungal reproduction. After the symptoms of smelly feet after pregnancy, you can go to the hospital in time to find out the cause of the disease, and then under the guidance of the physician to carry out the relevant treatment.