Hormonal Changes
Studies show that the changes in hormone levels that occur in women during menopause [5], childbirth, puberty, and pregnancy may cause red, swollen, or painful gums. It would help to contact your doctor regularly to keep your teeth healthy.
Periodontal Abscess
Another common cause of localized gum pain is an abscess, which is a sac of pus that occurs due to a bacterial infection. Abscesses may develop on the guns or in the area around a tooth. They usually cause gum pain and tooth sensitivity, and may be accompanied by a bad taste in the mouth or fever. Contact your dentist immediately if you have a periodontal abscess [6].