There are several reasons why the legs are uncomfortable and always want to stretch the legs: First, calcium deficiency will lead to muscle spasms easily, and people will stretch their legs to relieve the uncomfortable feeling. Second, leg discomfort and want to stretch legs may be electrolyte disorders, high potassium or low potassium and other electrolyte disorders later will appear neurological leg spasms and uncomfortable feeling. Once the nerves in the legs are uncomfortable, people will stretch their legs to relieve, which is actually a self-regulatory action and a normal reaction. Third, if there is a disease in the waist after the compression of the sciatic nerve, patients always have leg numbness, uncomfortable feeling, then the patient will stretch the legs to relieve leg numbness, uncomfortable feeling. Fourth, diabetes, rheumatism, rheumatoid disease attacks can make the legs uncomfortable, people will stretch their legs to relieve the symptoms of discomfort.