Gum swelling, whether one area of the gums surrounding a tooth or all of the gums, is quite common. It can be due to anything from minor causes (like hypersensitivity to chewing gum, reactions to prescription medications, or a stuck popcorn kernel) to more serious ones (such as gum disease or other health problems).
Gum disease, or periodontal disease, is quite common, & research shows nearly one in three U.S. adults between the ages of 30 & 54 has some form of it. The most minor type of periodontal disease is gingivitis. Signs of gingivitis include red, swollen gums that bleed easily when brushing or flossing. It is caused by a buildup of plaque & can be taken care of with a professional cleaning followed by continued attentive oral care at home. However, sometimes gum swelling does not indicate a problem within the mouth, but rather a more serious health condition, such as leukemia or diabetes.
In either case, it is best to receive a complete examination from your dentist or periodontist as soon as you experience swollen gums, bleeding while brushing or flossing, or any other abnormal symptoms in your mouth.