Patients’ feet always feel distended for the following reasons: First, plantar muscle strain: prolonged walking or standing can lead to significant strain on the plantar muscles, and patients will have a sore and swollen feeling on the soles of their feet, and feel weakness in the plantar muscles, and have difficulty walking. Patients can get rapid relief of clinical symptoms through local heat, massage, and rest. Second, lower limb blood circulation disorder: such as varicose veins, patients will show a sore and swollen feeling in the feet, and will be accompanied by weakness in the lower limbs, mainly related to the obstruction of venous reflux, tissue metabolism significantly decreased, acidic metabolites accumulation. Patients are able to achieve rapid relief of clinical symptoms with elevation of the affected limb, as well as vascular-specific treatment. The constant feeling of soreness and swelling in the feet should be diagnosed and treated promptly in order to achieve satisfactory control of clinical symptoms. Patients should take the initiative to exercise the feet as well as the muscles of the lower extremities to prevent strain, and also to treat vascular lesions early if they are present.