Symptoms of acute arthritis include pain, swelling, dysfunction, fever, and skin color change. 1. Pain: It is the main manifestation of acute arthritis. In severe cases, the pain is severe and affects normal activities. 2. Swelling: acute arthritis inflammation continues to progress, will cause soft tissue swelling, joint cavity fluid will also increase. 3. Dysfunction: After the onset of acute arthritis, due to the inflammation caused by the edema of the tissues around the joints, the joint structure is damaged, resulting in the restriction of normal activities. 4. Fever: Acute arthritis can cause an increase in local skin temperature, and if the inflammation is not controlled in time, it can lead to fever when it causes hematogenous arthritis in the later stage. 5. Skin color change: If acute arthritis is caused by infectious factors, the skin of local joints may be red. Acute arthritis may also have other symptoms, and prompt medical attention is recommended.