What should you know about causes of mumps disease?

The mumps virus enters through the nose or mouth and travels through the body. It commonly inflames the salivary glands near the cheeks and jaw, producing tender swelling that may affect one or both sides. Fever, headache, tiredness, and reduced appetite can accompany this inflammation. Swollen glands can have many causes, so gland swelling alone cannot confirm mumps.

Mumps spreads through saliva, coughs, sneezes, and shared items that have recently contacted the mouth. People without effective immunity are more vulnerable after close exposure. Vaccination lowers the chance of infection and can reduce the severity of illness, but a vaccinated person with compatible symptoms still needs advice.

Phone a GP practice before visiting and mention possible mumps, swollen cheeks or jaw, fever, contact with a case, and MMR vaccination history. A [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) can guide examination and testing. Avoid sharing drinks, cutlery, lip products, or towels, and limit close contact while symptoms are assessed. Ask about [MMR Vaccination](/treatments/preventive-care-and-vaccination/mmr-vaccination/) for anyone whose protection is uncertain. Fluids, soft foods, and rest may make jaw discomfort easier to manage.

Get urgent help for severe headache with neck stiffness, confusion, fainting, seizures, breathing trouble, or inability to keep fluids down. Seek prompt medical advice for severe testicular or lower abdominal pain, marked ear symptoms, or worsening swelling. A pregnant person, infant, or person with reduced immunity should contact a clinician early after exposure or compatible symptoms.

Could this swelling be mumps or another infection? Do I need testing? How long should I stay away from school, work, or close contacts? Should household members review their MMR records?