My gums keep bleeding when i floss no matter how long i've tried. any advice?

Don't give up!: If your good habits at home, i.e. Brushing and flossing, don't reduce the problem, you may have more serious periodontitis rather than just gingivitis. See your dentist soon.

Gum disease: If the bleeding persists despite flossing, you need to see a periodontist or dentist to determine if you have gum disease which can eventually result in tooth loss.

See your dentist: You definitely have an open contact in between teeth that must be eliminates or a localized periodontal problem such as vertical bone loss. You may also have periodontal abscess or a localized malocclusion. Must see a dentist to prevent losing the tooth.

Continue flossing but see your Dentist to evaluate the condition of your gums, diagnose and treat the problem.

If you have active periodontal disease it requires professional care. Don't stop flossing, but see your Dentist or a specialist Periodontist for evaluation and appropriate treatment.