Sometimes, even if you brush your teeth, your breath can still smell bad. This can happen because of different things happening in your body.

1. Sick Nose
When you have a cold or a stuffy nose, yucky stuff called mucus can build up. This can make your breath smell bad because germs like to live in the mucus.

2. Cough and Cold
If you have a cough or a cold, germs can make a lot of mucus. When you cough, this mucus can come out and make your breath smell bad.

3. Sugar in Blood
People with diabetes have a lot of sugar in their blood. Sometimes, their breath can smell fruity or like nail polish because of something called ketones.

4. Tummy Problems
If you have a tummy ache or something called reflux (when food comes back up), it can make your breath smell bad. This happens because food or acid can come up to your mouth.

How to Fix It

1. Brush Your Teeth: Brush your teeth in the morning and before bed.

2. Drink Water: Drink water to keep your mouth wet.

3. Healthy Foods: Eat healthy foods and avoid too much candy.

4. Visit the Doctor: Go to the doctor and dentist to make sure everything is okay.

Remember, taking care of your mouth and body helps keep your breath fresh and healthy!