I have painfull swollen gums on my bottom first jaw tooth,what can be the cause?

Gingivitis: Bleeding gums can be a sign that you are at risk for, or already have, gum disease. The bacteria and other particles, constantly form a sticky, colorless toxic “plaque” on teeth causing the gums to become inflamed and to easily bleed. This is a serious problem, which should be checked by a dentist. The good news is that this condition is curable. Call your dentist today!

Infection: Dr. Grin is correct, it may be gum infection. Could also be abscessed tooth. The only way to find out shat's wrong, and what needs to be done to fix it, is to be examined by your Dentist. Please call for an appointment before the infection spreads.

Gum or tooth: Probably disease of the gingiva or tooth. See your dentist promptly.