What should you know about Crohn's disease and joint pain?

Crohn's disease can be associated with inflammation outside the digestive system, including the joints. Pain or swelling may affect larger joints such as knees, ankles, or hips, while discomfort can also involve the spine. Some joint symptoms track with bowel inflammation; others may continue when bowel symptoms are quieter. Stiffness after rest, reduced movement, warmth, or swelling are useful details to record.

Joint pain has many possible causes, including injury, infection, medication effects, and other inflammatory conditions. Abdominal pain and diarrhoea alongside joint symptoms may support a Crohn's-related pattern, but they do not prove the cause.

Book a GP Consultation or contact your gastroenterology team if joint pain persists, limits walking, interrupts sleep, or appears with a bowel flare. Note the joints involved, morning stiffness, swelling, eye or skin symptoms, fever, and changes in bowel habits. Do not start regular anti-inflammatory pain medicines without advice, as some can aggravate bowel symptoms or interact with treatment. Gentle movement within comfort may help prevent stiffness.

Seek urgent care for a hot, very swollen joint with fever, sudden inability to bear weight, severe back pain with leg weakness or bladder changes, or eye pain with blurred vision. These symptoms may need prompt assessment for infection or inflammation affecting other tissues.

Ask whether the joint pattern may be related to Crohn's disease, whether blood testing or a joint assessment is needed, which pain relief is appropriate, and whether your bowel treatment should be adjusted.