Mumps is a contagious viral infection that primarily affects the salivary glands, causing them to swell. It is caused by the mumps virus, which spreads through respiratory droplets when an infected person coughs or sneezes. Symptoms often include fever, headache, and swollen cheeks, making it uncomfortable for those affected. Vaccination is the best way to prevent mumps, and the MMR vaccine protects against mumps, measles, and rubella. While mumps can lead to complications like orchitis or meningitis, most people recover fully with proper care. Maintaining good hygiene and staying up-to-date with vaccinations are essential for reducing the risk of infection.