What Causes Nausea and the Urge to Vomit?

Recently, many people have reported feeling nauseated and having the urge to vomit when brushing their teeth in the morning. Although they do not actually vomit, the sensation of dry heaves persists, causing discomfort and confusion about whether the issue lies with their oral cavity or gastrointestinal system. Let's delve into the reasons behind this phenomenon.

Some individuals tend to squeeze out too much toothpaste when brushing. The abrasive agents in toothpaste create abundant foam through friction in the mouth, stimulating the throat and inducing nausea. Additionally, most toothpastes contain special ingredients that induce vomiting to prevent aspiration. Toothbrushes with large heads can easily irritate the mouth and throat, leading to nausea. It is recommended to use smaller-headed health toothbrushes. Female users with smaller mouths may consider using children's toothbrushes.

Certain medicated toothpastes have strong flavors and high irritancy, readily causing nausea and vomiting. It is advisable to choose toothpaste that suits one's needs and is gentle. Many people rush through brushing their teeth, which naturally leads to nausea. Mastering the correct brushing technique and following a specific sequence is crucial. Brushing teeth with cold water in winter can create a large temperature difference between the inside and outside of the mouth, stimulating the gag reflex and inducing nausea. Adding some warm water to the toothpaste in winter can reduce the temperature difference, soften the bristles, and decrease irritation.

Frequent nausea and vomiting while brushing teeth can form a conditioned response, such that similar symptoms occur whenever brushing becomes a routine. To combat this, distract yourself while brushing, try to breathe through your nose, and relax. As your attention shifts, nausea and vomiting will gradually improve.

Many people have the habit of brushing their tongue along with their teeth, which can easily irritate the mouth and cause nausea.