What causes sudden fever and body aches?

Mar 30, 2023 Source: Cainiu Health
Disease description:

I suddenly developed a fever this morning, accompanied by body aches. I wonder what could be causing this?

Doctor's answer (1)
Dr. Yang Shuwen
Sudden fever and body aches may be caused by viral influenza due to viral infection, which increases lactic acid metabolites in the body and stimulates local nerves. It could also result from tuberculosis caused by Mycobacterium tuberculosis infection, in which the affected area invades the pleura and triggers inflammation. Additionally, patients with rheumatoid arthritis may also experience these symptoms.