What Causes Bad Breath?

Poor dental hygiene. This is the most common cause of bad breath. When you don't brush and floss your teeth regularly, plaque and bacteria can build up on your teeth and gums. This can lead to cavities, gum disease, and bad breath.

Dry mouth. Saliva helps to wash away bacteria and food particles from your mouth. When you don't have enough saliva, your mouth can become dry and bacteria can grow more easily. This can lead to bad breath.

Certain foods. Some foods, such as garlic, onions, and coffee, can cause bad breath. This is because these foods contain compounds that are broken down into smelly gases.

Medical conditions. Some medical conditions, such as diabetes, liver disease, and kidney disease, can cause bad breath. This is because these conditions can lead to a buildup of toxins in the body that can be released through the breath.

Medications. Some medications, such as antibiotics and antidepressants, can cause bad breath. This is because these medications can change the balance of bacteria in your mouth.

Smoking. Smoking can damage the gums and teeth, and it can also dry out your mouth. This can all lead to bad breath.

Alcohol. Alcohol can dehydrate you, which can lead to dry mouth and bad breath.

Acid reflux. Acid reflux occurs when stomach acid backs up into the esophagus. This can cause a sour taste in your mouth and bad breath.