Why does our mouth stink after we wake up from sleep?

Halitosis, or bad breath
A very common problem and happens to everyone. No one in this world wakes up with minty-fresh breath. There could be several factors like poor dental hygiene, poor sleeping habits, eating certain kinds of food, infection, chronic disease, certain kinds of medication, allergies, smoking etc that contribute to bad breath in the morning. A self assessment might reveal the exact cause of it. When we sleep, our mouth dries out and our normal flow of saliva decreases. When our mouth dries out, odor-producing anaerobic bacteria grow excessively. That is why our breath can be worse in the morning. If you snore or breathe through your mouth at night, there are more likely chances to have a bad breath in the morning than those who don’t. In both situations, your mouth is even more prone to drying out, setting the stage for bacteria to grow. Bad breath, especially in the mornings, rarely signals an underlying disease. Consult your doctor if you notice a sudden increase in bad breath or if you develop a fever.


One cannot eliminate or fully prevent morning breath because it is a simple function of reduced saliva and a temporary proliferation of a specific type of bacteria. But there are things you can do to reduce its affect and make the morning breath more tolerable . Keeping a glass or a bottle of water by your bedside and drinking it first in the morning as soon as you wake up serves as some kind of dilution to the smell that will emerge if you open your mouth to speak. Two or three minutes of brushing, flossing, cleaning the tongue with a good tongue scraper, doing an alcohol-free mouthwash before bed makes the bacteria thrive less, helps clean the mouth as well as get rid of the food particles. Cutting down on sugar and carbohydrate-laden food is a good way to keep your teeth and gums healthy. Biannual dental visits also help a lot.

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