👉 Rheumatism is a chronic inflammatory disease characterized by swelling, pain and stiffness in joints. It can affect any joint, but it is most common in the hands, knees, elbows, wrists, and ankles. The exact cause of rheumatism is not fully understood, but it has been linked to various factors such as genetics, environmental factors, and lifestyle changes. The symptoms of rheumatism may include swelling, pain, stiffness, fatigue, joint loss, and difficulty walking or running.