Is sciatica a rheumatic condition?
In general, whether sciatica is caused by rheumatism needs to be determined based on the specific underlying cause. Rheumatic diseases may trigger sciatica, but many other factors can also lead to similar symptoms. The detailed analysis is as follows:

If a patient suffers from rheumatic diseases such as rheumatoid arthritis or ankylosing spondylitis, and the pathological changes affect the lumbar spine or sacroiliac joints, thereby compressing the sciatic nerve, sciatica can be judged as being caused by rheumatism. This condition is often accompanied by symptoms such as joint stiffness and swelling. Abnormal rheumatological indicators can be detected through examinations, and the nerve compression is directly related to the rheumatic disease. Treatment should therefore target the primary rheumatic condition.
If the patient does not have a rheumatic disease, or if tests show normal rheumatologic indicators, sciatica is more likely caused by lumbar disc herniation, piriformis syndrome, or similar conditions, and is unrelated to rheumatism. These cases are often triggered by prolonged sitting or poor posture. The pain is directly associated with the site of nerve compression and requires imaging studies to confirm the exact cause.
In daily life, it's important to maintain proper sitting posture, avoid standing or sitting for long periods, and choose a mattress of moderate firmness. During episodes of pain, reduce physical activity and apply heat therapy appropriately to relieve discomfort. Seek medical attention promptly to obtain an accurate diagnosis before initiating targeted treatment.