Usually the bleeding happens from the gums around the tooth and not the tooth. Due to tooth decay or gum pocket, there is accumulation of food particles and plaque causing the gums to get inflamed and bleed easily. When pressure builds up in the gum pocket, it pains. But after it bleeds, the pressure is relieved, so you will not have pain. Go to a dentist and get a clinical check up done and a tooth X-ray also.

Hello Looking at the photo it seems the area has palque accumulation. Also the gum in that area is inflamed. You need to visit the dentist and get cleaning done. For time being you can apply rexidine-m-forte gel. You have to massage for 30 sec. And use it for 2-3 times a day.

It has happened because of poor hygiene and wrong brushing, your gum has receded down from its position . First of all change your brush to soft bristles one. Then while brushing the pressure should not be more that you feel your gums are hurting, do it in circular and up and down motion. Then get your full mouth cleaning done .after that do warm salt water rinses. The inflammation will come down.

Hi, your issue can be resolved by good cleaning and polishing. You can visit my clinic in Pune for free consultation.

Hi sir..     Nothing to worry... You have gum recession and tartar can be seen      It caused by accumulation hard and soft deposits(plaque,calculus,tartar)    Treatment:    Get scaling and polishing should be done followed by rexidine mouthwash for 15days

bleeding is because your gum is inflamed in that area. Inflammation is due to presence of deposits. Your gum has receded in that area, probably because you brush horizontaly and that too with pressure

Hi It's the gum inflammation over that teeth .Tartar deposit is also seen with gum recession.First proceed with general cleaning followed by chlorhexidine mouth rinse and gum astringent application. 

You have gum recession and tartar in that area. Please get scaling and polishing ( cleaning of teeth) done. It should settle with that.