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Health in Plain

Mumps in Children: Symptoms, School and the MMR Dose

In a child, mumps announces itself as a swollen, tender jaw — the glands under the ears puff out, chewing hurts, and there is fever, headache and no interest in food. The AAP also lists earache, difficulty talking, occasional vomiting and joint pain. Most children recover fully in about a week, and the whole illness is preventable with two shots.

What parents actually notice first

  • A swollen jawline, on one side or both, filling the space between the earlobe and the angle of the jaw.
  • Complaints about chewing or swallowing, which often show up before the swelling is obvious.
  • Earache, and sometimes trouble talking clearly.
  • Fever, headache and tiredness, which arrive as a prodrome a few days ahead of the swelling.
  • Loss of appetite, occasionally with vomiting.

Roughly 1 in 5 unvaccinated infected people have no symptoms at all, so a child can pass mumps through a household without ever looking sick.

Keeping a child home: the 5-day rule

Mumps spreads through saliva and respiratory droplets, and a child can be contagious a day or two before the cheeks or jaw swell. The AAP’s exclusion rule is straightforward: stay home from school, child care and group activities for at least 5 days from the moment the swelling started. Count from the swelling, not from a test result or a doctor’s visit.

Care at home

  1. Rest, for as long as the child wants it.
  2. Soft, non-citrus foods — sour flavors stimulate saliva and hurt an inflamed gland.
  3. Extra fluids, since a child who is eating less is still losing water.
  4. A cool or warm compress on the swollen area, whichever the child prefers.
  5. Fever management with a weight-appropriate dose of acetaminophen or ibuprofen. Never aspirin in a child.

Antibiotics do nothing; mumps is viral. There is no antiviral that shortens it.

Complications specific to childhood

The complication that has historically mattered most in children is hearing loss: mumps was once the most common cause of deafness after birth in the United States. It is rare today, and rare even among cases, but any complaint of muffled hearing or ringing during or after the illness should be examined rather than dismissed. Meningitis, encephalitis and pancreatitis all occur and all remain uncommon. The complications that grow with age are covered in mumps in adults symptoms.

Vaccination is the whole prevention

The AAP schedule is MMR at 12 to 15 months and again at 4 to 6 years. A third dose may be recommended during a community outbreak, or if the first dose was given early — for example before international travel. Even when a vaccinated child does catch mumps, the illness is usually milder and the serious complications are less likely.

Call the pediatrician now for

Severe headache with a stiff neck, unusual drowsiness or confusion; severe abdominal pain; testicular pain or swelling; new hearing trouble; or a child who is getting worse rather than better. In an infant under 3 months, a rectal temperature of 100.4 °F (38 °C) is an immediate call regardless of anything else. If the swelling near the ear does not look like the description above — worse at mealtimes, or a discrete movable lump — compare it against swelling near ear causes, and see mumps symptoms for the full timeline.

This content is informational and does not replace medical consultation, diagnosis, or treatment.

Frequently asked questions

When does my child get the MMR shot?

Two doses: the first between 12 and 15 months, the second between 4 and 6 years. Some children need a third dose during a community outbreak, or if the first dose was given earlier than usual.

How long does my child have to stay home?

At least 5 days from the moment the swelling started — that is the AAP's rule for school, child care and group activities. It is counted from the swelling, not from the day a test came back.

What can my child eat while the glands are sore?

Soft, non-citrus foods. Anything sour drives saliva production and makes an inflamed gland hurt more, and anything that needs hard chewing is uncomfortable. Extra fluids matter, because children eating less still need to stay hydrated.

Does mumps in a boy affect his testicles?

Rarely before puberty. Orchitis is largely a post-pubertal complication, and StatPearls notes that infertility from it is rare in pre-pubertal boys. Any testicular pain or swelling still needs to be examined the same day.

Can my child get mumps twice?

It is uncommon. What is far more common is mumps in a vaccinated child, since two doses are about 86% effective against mumps — good protection, not a guarantee, and usually a milder illness when it fails.

Sources

  1. What to Know About Mumps — American Academy of Pediatrics, HealthyChildren.org
  2. Mumps — StatPearls, NCBI Bookshelf
  3. Mumps — MedlinePlus, National Library of Medicine
  4. Fever and Your Baby — American Academy of Pediatrics, HealthyChildren.org

Written by Lucas Silva · Reviewed by Lucas Silva · Updated on August 14, 2026