What is the main symptom of arthritis?

The main symptom of arthritis is joint pain and inflammation. Arthritis is characterized by inflammation of the joints, which leads to swelling, pain, and stiffness, particularly after periods of inactivity or overuse of the affected joint. This inflammation is a direct response of the immune system, and it can severely impact the function and comfort of the joints, making movement painful. The painful symptoms often guide the diagnosis and management of the condition, highlighting the need for effective pain relief and anti-inflammatory treatment.

While other symptoms like fever, excessive thirst, and reduced appetite can be associated with various medical conditions, they are not primary indicators of arthritis. These may arise in conditions where arthritis is a secondary component, but they do not specifically reflect the hallmark characteristics of joint pain and inflammation associated with arthritis itself.