What causes bleeding gums and bad breath when brushing teeth?

Bleeding gums and bad breath may be caused by various factors, mainly including the following: 1. Oral diseases: Such as gingivitis and periodontitis, which are usually caused by food impaction, poor oral hygiene, dental plaque, and tartar. Common symptoms of gingivitis and periodontitis include swollen, painful, and bleeding gums, as well as bad breath. Brushing teeth too hard or in the wrong direction may damage the blood vessels in the gums, causing bleeding. 2. Dental caries: Tooth decay results from the erosion of dental tissues by sugars or bacteria in food. As the condition progresses, cavities may form, irritating the gums and causing bleeding, along with bad breath and toothache. 3. Improper brushing techniques: Using a toothbrush of poor quality, brushing too hard, or using incorrect brushing direction may damage the blood vessels in the gums, leading to bleeding. 4. Other factors: Bad breath may also be associated with oral infections, diseases of the ear, nose, and throat system, metabolic disorders, and gastrointestinal diseases. If you have any concerns, it is recommended to seek timely medical attention for diagnosis and treatment by a qualified healthcare professional.