The weakness of woman’s feet may be caused by hypokalemia, hyponatremia, anemia and other diseases, which need to be taken seriously and timely consultation to identify the causes. 1. Hypokalemia: usually serum potassium is lower than 3.5mmol/l, which is hypokalemia. The earliest symptom of hypokalemia is muscle weakness, mainly limb weakness and delayed paralysis, which can be further extended to the trunk, and other symptoms such as abdominal distension can also occur. 2. Hyponatremia: a common electrolyte disorder in clinic, the main symptom of hyponatremia is weakness, usually accompanied by nausea, vomiting, headache, drowsiness, muscle spasm and other symptoms. The more serious patients can also appear significant neurological symptoms, such as convulsions, coma and so on. 3. Anemia: a disease caused by the decrease in the capacity of peripheral blood erythrocytes, which cannot supply sufficient oxygen to tissues and organs. The most common systemic symptom of the patients is fatigue, which can be accompanied by symptoms such as headache, dizziness, insomnia, memory loss, and pale skin and mucous membranes, etc. The most common symptoms of the patients are fatigue. Diabetes mellitus, cerebral hemorrhage, osteoporosis, immune connective tissue diseases can also lead to a woman’s foot weakness, but foot weakness may also be due to fatigue resulting in the accumulation of lactic acid metabolism in the muscle tissues of the legs and other physiological factors, this symptom alone is not sufficient to diagnose the disease. It is recommended that if the symptoms persist or progressively worsen, consult a regular hospital in a timely manner to clarify the cause of the disease and, if necessary, carry out targeted treatment.