Why does my waist hurt after sitting for a long time?

Lower back pain after sitting for a long time is a relatively common symptom. This is mainly caused by maintaining the same posture for a long time, which leads to poor blood circulation in the lower back area. In addition, if the joints are strained or there are some injuries that affect blood circulation, it will also cause lower back pain.

1. Wearing high heels for a long time

Wearing high heels for a long time will affect the balance of the lower limbs, making it difficult to stand and walk as desired. The reaction and coordination ability of the whole body will decrease, and acute lumbar sprain will easily occur. When a sprain occurs, the muscles and ligaments will be torn to varying degrees and there will be slight bleeding, swelling, and even bruising, which may manifest as low back pain and cause great inconvenience to work and life.

2. Sacrospinous ligament relaxation

After pregnancy, the growth of the fetus may increase the support force of the waist, leading to relaxation of the sacrospinous ligament, compressing the pelvic nerves and blood vessels and causing low back pain. This type of low back pain will generally disappear gradually as the waist muscle strength recovers after delivery.

3. Internal injuries

Factors such as excessive childbirth, frequent induced abortions and excessive sexual intercourse can all cause kidney damage and lead to low back pain.

4. External infection

Long-term exposure to cold and dampness can block the meridians, leading to poor blood circulation and causing low back pain.

5. Sacroiliac joint strain

The sacroiliac joint is composed of the side of the sacrum and the bilateral iliac bones. Although it is a synovial joint, the articular surfaces are staggered and fixed by strong ligaments, with only a small amount of forward and backward and rotational movement. Sacroiliac joint sprain is one of the most common causes of low back pain. Endocrine effects in late pregnancy can cause ligament relaxation and make them prone to sprains or prolonged walking in the early stages after delivery. The clinical manifestations are persistent local pain, fear of weight bearing, aggravation during activities, and difficulty turning over.