Frequent sedentary behavior may cause sacroiliitis because of repeated irritation of the sacrococcygeal area and long-term chronic strain. Sacroiliac arthritis is a sterile inflammatory reaction that occurs in the sacroiliac joint area, and the common symptoms are low back pain, hip pain, lumbosacral stiffness and impaired mobility. Sacroiliac arthritis is caused by a variety of factors such as fall, car accident resulting in sacroiliac joint fracture, or chronic strain injury such as prolonged physical labor, prolonged sitting, and ankylosing spondylitis, gout, rheumatoid arthritis. Sitting for a long time when the sacroiliac part of the repeated mechanical stimulation, can produce certain damage, long-term chronic strain, can lead to the occurrence of sacroiliac arthritis. So you should get up and walk around after sitting for a while in your daily life. When symptoms such as hip and low back pain occur, it is recommended to consult a doctor in time, complete the relevant examinations, and follow the doctor’s instructions to carry out targeted treatment after clarifying the cause of the disease.