Help! what can be causing my bad breath?

Mulitfactorial: Bad breath, or halitosis, is caused by a production of variable sulfur compound (vsc), which is a break down product of blood. As your gum bleed, vsc produced and caused bad breath. To treat halitosis, you must have good oral hygiene. Check with your dentist to eliminate the cause of bleeding such as food impaction, tooth or gum abscess, faulty restoration or tooth decay, malocclusion.