There are many reasons why it hurts to sit on the buttocks, and the common ones are perianal abscess, lumbar disc herniation, sciatic tuberculosis bursitis, etc.
1. Perianal abscess: purulent infection occurs in the soft tissues of the anorectal canal and rectum or the surrounding interstitial space, and purulent exudate gathers to form an abscess, which is manifested as persistent pain and swelling around the anus, and the pain is aggravated when sitting down.
2. Lumbar disc herniation: due to the degeneration of lumbar disc, the fibrous annulus ruptures partially or completely, and the nucleus pulposus protrudes to irritate or oppress the nerve root and cauda equina, manifesting as lumbar pain and sciatica, with the pain starting from buttocks and radiating along the back of the thighs to the calves and the back of the feet.
3. sciatic tuberosity bursitis: due to long-term sedentary or hip fat loss, sciatic tuberosity bursa long-term extrusion and friction, the bursa wall gradually thickening or fibrosis and the symptoms caused by the manifestation of buttock pain, sitting down pain aggravated, the site of a more confined, do not radiate to other places.
There may be other reasons for buttock pain such as trauma, sciatic fracture and sciatic tumor, etc. It is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and give targeted treatment under the guidance of the doctor.