Many people have the misconception that bleeding gums after brushing is caused by too hard and prolonged brushing. This is not the case. Bleeding gums is a sign of Gingivitis. Gingivitis is the inflammation (swelling and redness) of the gums caused by gum irritation from plaque build-up. The irritated gums tend to bleed quite easily. Good news is that gingivitis can be reversed with good dental hygiene. Make sure you are brushing along the gums and flossing daily. Initially, you will still see some bleeding, but if you continue with proper brushing and flossing in the area, the gum bleeding will eventually disappear.