urine smelling breath odor.
Your buttocks will have odor from the fecal matter you excrete.
The odor of an alcoholic beverage on the breath will dissipate with time. It's also possible to cover the odor with breath mints, mouthwash, etc. However, doing so will not prevent the detection of the alcohol in an alcohol breath test.
metabolic disorder
When you smell a fart, you may be inhaling trace amounts of the gases and substances that make up the odor, but it is unlikely that you are inhaling significant amounts of fecal particles. The odor is primarily caused by sulfur-containing gases produced by bacteria in the digestive tract.
People hate fecal matter because it has a bad odor and associate it with filth and germs. Plus it can be a challenge to wipe after defecating.
Sinus breath is caused by the buildup of bacteria in the back of the throat. Excess, infected mucus can carry a strong odor, if it persists.
You start to develop bad breath and body odor
Bad odor, Bad breath, unkept appearance
The buttocks is where fecal matter is expelled, so it will stink. It is normal to have a smelly anus; your child is perfectly fine. He needs to be taught how to wash and clean the area properly. If he wipes well after a BM and bathes daily, there is no reason for him to have an odor.
If his breath smells like salt water, then he has tolerable breath. Dogs are like humans, in which the ideal scent of one's breath is salty. That means that the gums and teeth are clean. So, I really wouldn't worry. If it starts to smell like fecal matter, then worry.
your breath stinks too much and it is trying to escape the odor