If the patient’s legs are swollen and sore, there are usually several factors: 1, the most common factor is endocrine metabolic diseases, such as hypothyroidism, adrenocortical insufficiency, in which case there will be a typical mucus swelling in the front of the shin of the legs.2, in the case of cardiac factors, there will also be swelling of the legs, such as chronic cardiac insufficiency, Heart failure can lead to swelling and soreness of the legs.3. In the case of nephrogenic factors, such as chronic renal insufficiency, the patient will have a large amount of proteinuria and hypoproteinemia, which will be accompanied by the clinical symptoms of swelling and soreness of the legs.4. If the patient is obviously malnourished, the patient will also have the manifestation of swelling and soreness of the legs.