Sacral osteoarthritis should be called sacroiliitis. There are two main types, one is postpartum sacroiliac arthritis and the other is ankylosing spondylitis. 1. Postpartum sacroiliac arthritis: postpartum women are the high prevalence of sacroiliac arthritis, especially in the process of labor and delivery of too much force, the impact of inflammation and tearing damage. Female sacroiliac arthritis can take hot compresses, ultrasound physiotherapy, wearing a waist belt, bed. Pain is obvious can also take oral non-steroidal anti-inflammatory drugs such as celecoxib and other treatment. 2. Ankylosing spondylitis: There is no significant difference between the treatment of ankylosing spondylitis in women and men. Oral non-steroidal painkillers can be taken, such as oral diclofenac sodium extended-release capsules, or diclofenac diethylamide cream can be applied. Glucosamine sulfate capsules can be taken to nourish the cartilage. Physical therapy, such as ultrasonic physiotherapy, heat therapy, ultrashort wave, transcutaneous electrical nerve stimulation, etc., can be taken. Women with sacral osteoarthritis should keep their joints warm and avoid strenuous exercise. If the symptoms are obvious, you need to pay attention to rest. If there is stiffness in the joints and limitation of movement, consult a doctor.