Headache, fever, body aches and weakness are considered to be related to influenza, encephalitis, rheumatic fever, hemorrhagic fever and other diseases.
1. Influenza, influenza virus infection, the infected host cell degeneration, necrosis, lysis or shedding, resulting in an inflammatory response, the body’s immune system, cytokines and other factors involved in the response, resulting in fever, headache and myalgia and other systemic symptoms.
2. Encephalitis, some patients with encephalitis have headache, mainly due to pathogen infection leading to increased intracranial pressure, which stimulates the meninges and cerebral nerves, and is accompanied by fever symptoms.
3. Rheumatic fever, some patients with rheumatic fever, lesions involving bones, joints, etc., will lead to a systemic inflammatory reaction, so there will be headache, fever, body aches and weakness and other symptoms.
4. hemorrhagic fever, hemorrhagic fever is often accompanied by infectious viremia and generalized capillary damage, the body’s blood circulation is affected, headache, fever and body aches and weakness symptoms may occur.
Headache, fever, body aches and weakness may also be caused by other reasons, if there are obvious headache symptoms, it is recommended to consult a doctor in time for examination and treatment.