When i brush my teeth my gum top and bottom bleed i have switched tooth brushed to a soft brissled toothbrush. i don't bush hard. what could it be?

Gingivitis or.......: If you see a dentist routinely for check-ups, cleanings and necessary dental work, it's probably just some early gingivitis and easily resolved with a good cleaning and better home care\oral hygiene. There are some medical conditions which also need to be ruled out. However, it it's been a longer since your dental care, it could be more serious periodontal disease. See a dentist for the answer.

Need a cleaning: If it has been a long time since you had your teeth cleaned, there may be tartar and calculus below your gumline. This can cause inflammation and make your gums bleed very easily, even with a soft toothbrush. The problem will get better when it is removed, but you will need to see a dentist. Schedule an appointment to have them take a look.

Gingivitis: Possibly gingivitis, the most common gum disease or worse... Periodontitis. Gingivitis is easily reversed by brushing effectively and flossing daily. Gingivitis is gum inflammation as a result of bacteria accumulation not being fully removed daily. Periodontitis results when gum inflammation leads to the destruction of tooth supporting jaw bone. It eventually leads to tooth loss.