Gum bleeding between teeth in most of the cases is caused because of food lodgement.
There are certain areas in the mouth where brush can't reach and clean.
Thoroughly rinse your mouth after every meal
Use mouth wash which will help to reduce food depositions between teeth.
Supplement brushing with flossing or. Interdental brush
Next Steps
Get regular dental check up done and cleaning.
Health Tips
Avoid using tooth picks, this will increase the gap between the teeth and injure your gums.