​What is the cause of pelvic pain

The pelvis is the area of ​​the body located at the waist formed by the hip bones, including the sacrum and coccyx. Once the pelvis begins to ache, distend and ache, most of the time the pain is unbearable and is likely to have a certain impact on daily life. But what exactly is pelvic pain? Is it caused by a physiological or pathological phenomenon? Let’s discuss the above issues together.

Diagnosis

The human pelvis is composed of the sacrum, coccyx and left and right hip bones. The bones of the pelvis are connected by the pubic symphysis in the front of the pelvis and the sacroiliac joints, sacrococcygeal joints and two pairs of sacrotuberous ligaments and sacrospinous ligaments in the back. The pelvis, which is tightly surrounded by several bones, acts like a single bone. For women who are not yet pregnant, the pelvic joints are inactive and therefore pain does not occur. Once a woman is around 10 weeks pregnant, her ovaries secrete a substance called "relaxin", which makes the fibrous cartilage and ligaments of the sacroiliac joint and pubic symphysis become loose and soft, and the sacroiliac joint and pubic symphysis become wider and more mobile. By the late stages of pregnancy, the pubic symphysis widens by an average of 0.3-0.4 cm, and the sacrococcygeal joint moves posteriorly by up to 2 cm, to facilitate the fetus's passage through the bony birth canal during delivery. However, if the ligaments are too relaxed, the pubic symphysis will separate, the sacrum will not be able to fix the left and right iliac bones, and the pelvis will lack stability. When pregnant women walk, sit, go up and down stairs, or turn over, the bones of the pelvis will move separately, pulling on the fibrous cartilage and ligaments between the pubic bones, causing pain in the pubic and sacroiliac joints. In severe cases, the pain will radiate to the groin or perineum, and even make it difficult for pregnant women to move.

Accompanying symptoms and identification:

Pain in the pubic bone and sacroiliac joints. In severe cases, the pain can radiate to the groin or perineum, and even cause difficulty in movement for pregnant women. Pelvic pain needs to be differentiated from the soreness caused by dense sacroiliitis. The reason for the pain caused by dense sacroiliitis is: due to endocrine effects, tendons and ligaments relax, causing the sacroiliac joint to loosen and lose stability. As a result, the sacroiliac joints are often abnormally irritated or damaged. Some doctors also believe that it is caused by local ischemia and osteoporosis of the sacroiliac joint during pregnancy. Pregnant mothers may feel pain in the lumbar region, which may sometimes radiate downward to the buttocks and thighs on both sides.

Pain caused by dense sacroiliac arthritis: This kind of low back pain is due to endocrine effects, which cause relaxation of tendons and ligaments, causing the sacroiliac joint to loosen and lose stability. As a result, the sacroiliac joints are often abnormally irritated or damaged. Some doctors also believe that it is caused by local ischemia and osteoporosis of the sacroiliac joint during pregnancy. Pregnant mothers may feel pain in the lumbar region, which may sometimes radiate downward to the buttocks and thighs on both sides.