Up to half of people who get mumps have very mild or no symptoms, and therefore do not know they were infected with mumps.
The most common symptoms include:
- Muscle aches
- Loss of appetite
- Swollen and tender salivary glands under the ears on one or both sides (parotitis)
Symptoms typically appear 16-18 days after infection, but this period can range from 12-25 days after infection.