Patients with swollen and painful gums can eat watermelon, but watermelon does not serve the purpose of treating swollen and painful gums. Watermelon has the effect of relieving summer heat, and watermelon is rich in vitamins and other substances. Eating watermelon during the period of gingival pain will not aggravate the condition, but you need to control the intake of watermelon to avoid gastrointestinal discomfort. There are many types of swollen gums in the clinic, which may be caused by pulpitis, apical periodontitis, periodontitis, gingivitis, pericoronitis, and possibly trigeminal nerve pain. Gingival pain can be under the guidance of the doctor, timely symptomatic treatment, as a temporary adjunctive treatment can be oral non-steroidal anti-inflammatory drugs for treatment, such as ibuprofen extended-release capsules, metronidazole and so on. The symptoms of swollen and painful gums, it is recommended that patients follow the doctor’s instructions to actively cooperate with the doctor’s treatment, do not self-medication, so as not to delay the condition.