Flu Symptoms

Flu signs and symptoms usually come on suddenly and can include:

• Fever/chills
• Sore throat
• Cough
• Muscle aches
• Fatigue (tiredness)
• Headache
• Runny or stuffy nose
• Vomiting
• Diarrhea

Flu can make some medical conditions, like heart disease, cancer, or diabetes worse.

Health Complications from Flu:
• Pneumonia
• Bronchitis
• Sinus infections
• Ear infections

Anyone can get sick with the flu, but children younger than the age of two, adults older than 65, and people with chronic medical conditions or weakened immune systems have an increased risk of suffering from serious health complications related to the flu.

Last Reviewed: October 24, 2023