There are many causes of sacrococcygeal pain, such as arthritis, strain, lumbosacral spine disease, sacral spondylitis, slight protrusion of the caudal vertebrae, sacral fracture and other causes and postpartum. Exertional lumbago,osteophytes,kidney disease,lumbar muscle strain,lumbar disc herniation,etc.,sacrococcygeal syndrome. Pelvic inflammatory disease: Main clinical symptoms: lumbosacral pain or lower abdominal pain, or aggravated by prolonged standing, overwork, sexual intercourse, or premenstrual period, and in severe cases, affecting work. Or there is increased leucorrhea, menstrual disorders, menstrual bleeding and dysmenorrhea, unpleasant sensation; tubal obstruction, infertility, etc. Exertional lumbago: It is due to less exercise or labor in general, more or heavier physical labor in a concentrated period of time, and after a few hours or upon waking up, feeling widespread soreness in the lumbar region, aggravated by activity. There may be mild swelling and widespread pressure pain on both sides of the lumbar region on examination; an X-ray of the lumbar region usually shows no abnormal findings. Because the lumbar muscles are usually less active and occasionally too active, metabolites such as lactic acid accumulate and cannot be discharged in time, thus causing local congestion and edema. Patients with this type of exertional lumbar pain also have similar phenomena in other parts of the body, such as the arms and lower limbs. Iliac arthritis: a branch of osteoarthritis. Most sacroiliac arthritis is not a separate disease, but is caused by other diseases. For example, many patients with ankylosing spondylitis present with sacroiliac arthritis at the beginning of the disease, so the diagnosis should be further examined to see what causes it. Sacroiliac arthritis is usually not associated with the sciatic nerve. Ankylosing spondylitis alternating left and right sacroiliac joint pain is the most characteristic symptom of ankylosing spondylitis in the middle and early stages. It is a deep and gradual pain in the fixed part of the sacroiliac joint, first prominent on one side, then developing into alternating left and right pain, and in severe cases the pain is at one point in the sacroiliac joint. The sacroiliac joint pain can move up to the lumbar spine and down to the sciatic pain or iliac pain in the thigh, and the pain is aggravated by coughing, sneezing or other tugging movements. The pain can begin unilaterally and intermittently and progress to bilateral, persistent pain with lumbar stiffness after a few months. Sacral fracture: abnormal development of the bones in the lumbosacral region. or congenital malformation. Caused by incomplete closure of the spinal canal during the embryonic period. First. Second sacral vertebrae during development. Incomplete primary ossification of the vertebral arches on both sides. The vertebral plates are not fused. But no spinal cord bulge. Medically known as occult sacral bifida. Also known as occult spina bifida. The developmental abnormality itself does not cause symptoms. But due to the weakness of the anatomy. In this case, the unfused part is cartilaginous tissue. Its toughness is poor. It is susceptible to secondary injury or strain. Thus, clinical symptoms occur. The initial onset of the disease can be manifested by standing for a long time. Stiffness of the lower back when overexerted. Vague pain. Later the pain becomes more pronounced. It can be caused by general activity. However, it is relieved by resting in bed. It disappears. Local pressure points may be evident. Tui-na therapy can relieve the symptoms. Medical practice has a preventive effect. Prone position. Use kneading. Rolling method in the waist and hip repeatedly massage 3-5 minutes. So that it relaxes the tendons and activates the blood. Then use the thumb tip pushing method. Repeatedly massage on the painful point and the corresponding part of the deformity for 2-3 minutes. The technique is superficial and deep. For painful spots or bumps with hard knots, use the thumb paddle method. Once a day. 10 times in a row is a course of treatment. 1-3 courses of treatment depending on the condition. For severe nerve root compression or pseudo-joint formation. In cases of severe traumatic inflammation. If necessary, surgical treatment can be performed. Intervertebral disc lesion: Because the maximum pressure on the spine when taking a sitting position can reach 270%, if the spine is overloaded for a long time, the elasticity of the intervertebral disc will decline, the nucleus pulposus may prolapse, and the spine will degenerate prematurely, which is often referred to as lumbar disc herniation, it is recommended that you first go to take an X-ray, if the above performance, and then review the CT, if there is no bone problem, it may be soft tissue If there is no bone problem, it may be soft tissue strain. Usually work in front of the computer should pay attention to sit for an hour to stand up after the activity, or rest for a moment, do not take a sitting position for a long time. Lumbosacral pain after childbirth: most of them are caused by the following reasons: ① calcium deficiency; pregnancy and breastfeeding are the reasons for more maternal calcium loss, which will cause osteoporosis and thus pain if not supplemented in time; ② strain: due to passive posture during pregnancy, the lumbosacral muscles and ligaments are strained, while the sacroiliac joint is slightly loose, the muscles and ligaments are elongated and the elasticity decreases; after childbirth, improper rest, premature and lasting standing and sitting, resulting in ③ Improper posture: improper posture when breastfeeding after childbirth, or getting used to a posture for breastfeeding, and getting used to sleeping in a fixed position at night for the convenience of breastfeeding, all of which can easily cause muscle fatigue and lead to back pain. For the above reasons, treatment can be calcium supplementation, acupuncture physiotherapy, massage, pain point closure, etc.; the mother should pay attention to rest, eat food with high calcium content such as soy milk, and at the same time, appropriate activities and exercises to relieve muscle tension. Lumbosacral area after delivery: it is caused by long labor, strong contractions, large fetal head, relative head-pelvic disproportion, etc. It is mainly due to gradual compliance of fetal head with the birth canal (bone, soft), fetal head compression, expansion, sacral ligaments, sacral hip joint expansion, stretching, relaxation ocarina injury, pelvic-sacral nerve stretching stimulation. Treatment: rest, hot compresses, neurotrophic agents, NSAID. can be restored to normal.