Hi,
I had brushed my teeth a little too hard few months back and it bleeds.
Few days later, i felt that part is very sensitive to pain. Later I found out the gum at that area grow upwards almost covering 1 of my bottom tooth.
May I know what causes this? Is there anything I can do to make the gum become normal size again?
It sounds as though you are developing gingivitis. What you see may not be gum but plaque that has built up under the gum and extending upwards pushing the gum away from the tooth surface.
You HAVE to get to a dentist. The area around your gumline has to be cleaned. Only a dentist can get down deep enough to remove heavy plaque build up. Gum must have bone under it to grow so I don't think it's gum your seeing but the result of plaque displacing the gum itself.
PLEASE make an appt with your dentist ASAP. Gingivitis (when your gums bleed when you brush) can lead to periodontal disease and a slippery slope to tooth loss. All of that can be avoided by getting to your dentist for a thorough cleaning and evaluation.
GOOD LUCK and make that appt right away.
My best to you,
Gellia