👉 Gnathitis is a medical condition characterized by pain or discomfort in the joints. It can be caused by various factors, such as arthritis, tendonitis, bursitis, or inflammatory conditions like rheumatoid arthritis. The symptoms of gnathitis may include stiffness, tenderness, swelling, and pain in the joint areas. If left untreated, gnathitis can cause significant limitations in movement and function in the affected joints. It is important to consult a healthcare professional for proper diagnosis and