Why do my gums bleed when I brush?

When your gums bleed it is a sign that you have inflammation. This could be gingivitis or it could be a sign of gum disease.  In order to determine if you have gum disease it is important to see your dentist.  Your dentist will need to take x-rays and measurements in order to determine if gum disease is present.  Although you cannot cure gum disease you can stabilize the disease and decrease the chance that you will lose teeth due to this disease process. You along with your dentist will come up with a plan and hygiene routine.