Women’s feet sour odor, mostly physiological factors, a few are caused by infectious factors. 1. Physiological factors: usually do not pay attention to personal hygiene, often wear footwear, rubber shoes, foot sweat is not easy to evaporate, can produce acid or sour odor. Usually exercise more, feet sweat more, if you do not wash your feet, sweat long-term impregnation of the skin, may produce sour odor. 2. Infection factors: foot sour odor, can also be considered with infection factors. For example, after the local breeding of bacteria, fungi and other microorganisms decomposition, may produce a special odor, resulting in sour feet, such as tinea pedis. To sum up, sour feet odor may be caused by physiological factors, it is recommended to wash your feet often, do not wear rubber shoes, and often take your shoes and socks to the sun. Suspected to be caused by infection of fungi and bacteria, it is recommended to go to the dermatology department of the hospital, under the guidance of the doctor’s treatment.