5 doctors weighed in:
My boyfriend has bad breath, how can I help him?
5 doctors weighed in

2 doctors agree
In brief: Buy a tongue scraper
Bad breath can have a lot of causes; the foods, gum disease, infections, failing dental restorations, sores in the mouth and respiratory infections.
However, 90% of the time bad breath is the result of a dirty tongue; gases produced by bacteria in at the back of the tongue. About 1% of bad breath is caused by systemic disease.

In brief: Buy a tongue scraper
Bad breath can have a lot of causes; the foods, gum disease, infections, failing dental restorations, sores in the mouth and respiratory infections.
However, 90% of the time bad breath is the result of a dirty tongue; gases produced by bacteria in at the back of the tongue. About 1% of bad breath is caused by systemic disease.
Dr. Jennifer Holtzman
Dr. Jennifer Holtzman
Thank
2 comments
Dr. Stanley Siu
Get him to goto the dentist. Tell him that you won't kiss him until he gets checked out by a dentist. That might light a fire under him.
Dr. Ed Friedlander
Most bad breath is due to decaying crud in the mouth, between the teeth or on the tongue. A good dental flossing with running it over the back of the tongue cures most of these. If it does not, look for a problem in the upper aerodigestive system.
In brief: Boyfriend bad breath
If brushing his teeth and flossing does not eliminate the bad breath, have him brush his tongue.
Also check his diet. Certain foods like onion and garlic can cause foul breath. If this does not help, then he may have tooth decay and/or gum disease, and needs to see a dentist. The bad breath may also come from a systemic disease, in which case he will need to see a physician.

In brief: Boyfriend bad breath
If brushing his teeth and flossing does not eliminate the bad breath, have him brush his tongue.
Also check his diet. Certain foods like onion and garlic can cause foul breath. If this does not help, then he may have tooth decay and/or gum disease, and needs to see a dentist. The bad breath may also come from a systemic disease, in which case he will need to see a physician.
Dr. Daniel Rubenstein
Dr. Daniel Rubenstein
Thank
Get help from a real doctor now
Dr. Aaron Milstone
Board Certified, Internal Medicine - Pulmonology
23 years in practice
1M people helped
Continue
108,000 doctors available
Read more answers from doctors