What are the symptoms of viral meningitis in adults?

The main symptoms of adult viral meningitis include the following aspects: 1. Headache and neck stiffness: This is one of the most common symptoms. The headache may be severe and is often accompanied by a stiff neck, possibly due to increased intracranial pressure and meningeal irritation. 2. Fever: Viral meningitis is often accompanied by fever, with body temperature possibly rising to 38°C to 40°C, which is a typical response after viral infection. 3. Nausea and vomiting: Nausea and vomiting are also common symptoms, possibly related to increased intracranial pressure and gastrointestinal dysfunction. 4. General weakness and malaise: Patients may feel tired, weak, and experience general discomfort, which are systemic toxic symptoms caused by viral infection. 5. Other neurological symptoms: Some patients may also exhibit signs of neurological impairment such as photophobia, sensory abnormalities, mental depression, and drowsiness. In severe cases, symptoms such as mental disturbances, epileptic seizures, and even coma may occur. 6. Prodromal infection symptoms: Before the onset of illness, patients often have a history of viral infections such as colds or gastroenteritis. These prodromal infection symptoms may provide clues for subsequent meningitis development.