The condition of left buttock pain, walking pain and tendon pain is usually due to the external rotation of the gluteus maximus, gluteus minimus and the pear-shaped muscles in the buttock position, and the accumulation of inflammatory metabolites in these muscles in a state of strain, which stimulates the peripheral nerves and causes pain. When walking, the pain is further aggravated by the strain on the muscles in the location of the strain. It is also usually seen after a cold, which slows blood circulation and leads to a buildup of inflammatory metabolites, which can also lead to painful stimulation of peripheral nerves. In this case, the first thing you should do is to let the strained muscles rest, avoid getting cold again and walking with heavy loads or strenuous exercise, walking too much, etc., to help the local muscles relax and help the strained position heal gradually.