Also known as: puffy gums, inflamed gums, enlarged gums, gum swelling, swollen gum tissue, gums that look puffy

Swollen gums in children can range from mild puffiness along the gumline to more noticeable enlargement, redness, and tenderness that makes brushing or eating uncomfortable. Swelling may affect one small area around a single tooth or involve a broader section of the gums, especially when plaque builds up or a tooth is erupting. Some children may not describe the sensation clearly — instead, they may avoid brushing certain spots, complain that their mouth feels sore, or resist chewing on one side.

This symptom often means the gum tissue is inflamed or irritated by something nearby, such as plaque, trapped food, eruption changes, injury, or infection. While mild swelling may improve quickly once the source is treated, persistent or worsening swelling should not be ignored. Left untreated, swollen gums can become more painful, bleed more easily, or signal a deeper infection affecting nearby teeth and tissues. Early evaluation helps identify the cause and supports healthier gums before the problem becomes more advanced.

Possible Causes of Swollen Gums

Swollen gums may be associated with:

  • Plaque buildup and gingivitis – Plaque and bacteria collecting along the gumline can irritate the gums, making them red, puffy, tender, and more likely to swell over time.

  • Erupting teeth – As baby teeth or adult teeth come in, the surrounding gum tissue can temporarily become swollen, sensitive, and more reactive than usual.

  • Food trapped between teeth or under the gums – Food debris caught in one area can create localized irritation and inflammation, especially if it stays there long enough to bother the surrounding tissue.

  • Brushing irritation or mouth injury – Brushing too aggressively, chewing hard foods, or accidentally injuring the gums can leave the tissue swollen and sore.

  • Gum or tooth-related infection – Infection near the gumline or around the root of a tooth can cause more significant swelling, tenderness, and pressure in the surrounding tissue.

Treatments for Swollen Gums

Depending on the cause of swollen gums, treatment may include:

  • Exams & Cleanings – Professional cleanings remove plaque and tartar that can inflame the gums, while an exam helps identify whether the swelling is related to gingivitis, irritation, eruption changes, or another dental issue.
  • Baby Root Canals (Pulpotomy, aka Pulp Therapy) – If swollen gums are being caused by a deep infection inside a baby tooth, pulp therapy may remove the infected tissue and help relieve swelling in the surrounding gums.
  • Laser Dentistry – For certain soft-tissue concerns, laser dentistry may allow precise treatment of inflamed gum tissue with less discomfort and a gentler overall experience.
  • Emergency Dentistry – When gum swelling is severe, rapidly worsening, or related to infection or injury, emergency care can help address the cause quickly and prevent the problem from spreading.

When to See a Dentist

Consider scheduling an appointment if your child:

  • Has swollen gums that last, worsen, or keep returning
  • Has red, puffy, tender, or bleeding gums
  • Complains of pain when brushing, flossing, or eating
  • Has drainage, facial swelling, or signs of infection

Related Symptoms

Concerned About Swollen Gums?

Swollen gums is often a sign that something needs attention. We’d love to evaluate your child’s symptoms and make their visit comfortable, positive, and stress-free. Schedule an appointment today and get the answers you need.