Psoas major muscle, also known as the large psoas muscle, is a long pike shaped muscle that originates from both sides of the lumbar vertebrae and is mostly caused by inflammation. It can be seen in yellow granulomatous pyelonephritis, where the perinephric fascia is thickened and adherent due to inflammatory infiltration, and the inflammation can extend widely to the perinephric tissues, causing swelling and adhesions or abscess formation in the affected psoas major muscle, which can involve the liver, spleen, colon, inferior vena cava, duodenum, etc., and even form skin fistulas. The local treatment includes local braking, posterior osseointegration, anterior osseointegration and lesion removal. Local braking, since the use of anti-tuberculosis drugs, local braking emphasizes that strict rest in a hard bed is sufficient. The use of plaster beds has been limited to pediatric patients, and for stable cervical spine tuberculosis, cervical collar fixation is generally used, while Glisson tape traction or cranial traction is required for cervical instability, especially atlantoaxial dislocation with spinal cord compression. Patients with lesion removal and intervertebral implant fusion are usually bedridden for 3 months in the cervical spine and 5-6 months in the thoracic and lumbar spine, at which time the implants have all fused and they can get up and move around without any brace protection. Patients with swollen lumbar major muscle are advised to eat light food in their diet. Nutrient-rich food. Easy to digest food. The following foods are recommended to be eaten in moderation: 1. watermelon has the effect of clearing heat and water detoxification. 2, winter melon clear heat and water swelling, make soup in moderation. 3, yam yam sweet light slightly cold, strengthen the spleen to dispel damp heat, steamed and eaten. Avoid eating fatty and fried food for patients with swollen lumbar muscles. Avoid eating spicy and warm foods. The following foods are recommended to eat less or not: 1, mutton mutton is warm, easy to produce dry heat. 2, pepper spicy irritant food, can aggravate the disease. Mustard, pepper should not be eaten. 3, fatty meat contains high cholesterol, is not conducive to disease treatment. Other greasy food should also be avoided.