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Do you need to brush your tongue when brushing your teeth? Doctor: You may have made a mistake, which is why bad breath persists!

Updated: Jun 14

In daily life, we practice an important hygiene habit every morning and evening - brushing our teeth. Toothbrushes, toothpaste, and water cups have become standard accessories on our washbasin. However, have you noticed that many people habitually brush their tongues with a toothbrush during the process of brushing their teeth? This seemingly inconspicuous subtle move actually contains profound scientific mechanisms and health mysteries.

The oral cavity is a complex environment, which is not only the starting point of the digestive tract, but also the gateway to the respiratory tract. In this small space, organs such as teeth, tongue, and salivary glands work together to maintain the moisture, cleanliness, and balance of the oral cavity. The tongue, as the core component of the oral cavity, not only participates in food fragmentation and taste capture, but also serves as a breeding ground for bacteria, harboring rich and complex microbial communities. These bacteria are diverse and complex, containing both beneficial bacterial communities that are crucial for oral health and harmful microorganisms that may lead to diseases. When harmful bacteria breed excessively in the oral cavity, they may cause a series of oral health problems, such as bad breath, oral ulcers, etc., affecting our daily life and health status.

Should we also pay attention to and clean the tongue during our daily oral cleaning process to ensure the health and hygiene of the entire oral environment? The question of whether to balance the cleanliness of the tongue when brushing teeth is not only controversial, but also an important topic worthy of in-depth exploration and research. Some people believe that brushing the tongue can remove bacteria from the surface of the tongue and help prevent oral problems such as bad breath; However, some people believe that excessive tongue brushing may damage the tongue nipple, affecting taste and oral health.

In fact, scientific research has shown that brushing the tongue moderately can indeed contribute to oral health. The surface of the tongue is covered with tiny nipples and indentations, which are the ideal hiding places for bacteria, food residues, and dead cells, making them easy to accumulate here. By gently removing these substances with a toothbrush or specialized tongue scraper, the number of bacteria in the oral cavity can be effectively reduced, thereby improving breath and preventing the occurrence of oral diseases.


When brushing your tongue, you need to master the correct method and force. If you apply too much force or clean the tongue too frequently while brushing your teeth, you may accidentally damage the tongue nipple, leading to decreased taste sensitivity or discomfort of tongue pain. Therefore, when brushing the tongue, we should choose a soft toothbrush or tongue scraper, gently scraping along the texture of the tongue to avoid excessive stimulation.

Bad breath is not solely caused by bacteria on the tongue. Sometimes, bad breath may be caused by other factors, such as dental problems, digestive system problems, etc. Therefore, when solving the problem of bad breath, we cannot rely solely on brushing the tongue, but also need to consider other possible reasons comprehensively.

In the field of medicine, many studies have also provided solid support and arguments for this viewpoint. For example, a study published in the Journal of Stomatology Research showed that regular tongue scraping can effectively reduce the number of bacteria in the oral cavity and lower the incidence of bad breath. The study also suggests that when cleaning the tongue, we should be extra careful to avoid damaging the tongue nipple, which may have adverse effects on taste function and overall oral health.


Moderate brushing of the tongue while brushing teeth is beneficial for oral health. By thoroughly removing bacteria, food residue, and dead cells from the surface of the tongue, we can effectively prevent oral health problems such as bad breath, thereby maintaining oral cleanliness and health. However, it should be noted that when brushing the tongue, the correct method and force should be mastered to avoid excessive stimulation that may cause damage to the tongue nipple. At the same time, we should also pay attention to other possible causes of bad breath and take comprehensive measures to address oral health issues.

It is crucial to cultivate good oral hygiene habits in our daily lives. We should regularly brush our teeth, rinse our mouths, and timely scrape off dirt on our tongues to ensure a clean and moist oral environment, thus maintaining our oral health. In addition, it is important to pay attention to dietary hygiene and regular routines, avoid excessive intake of stimulating foods and beverages, and maintain sufficient sleep and exercise. In this way, we can have a healthy and fresh oral environment and enjoy a beautiful life.


Oral health is not a trivial matter, it is actually an indispensable and important component of our overall health, worthy of careful care and cherish by each and every one of us. We should give full attention and importance to oral health, always remain vigilant, in order to timely detect and solve potential oral problems, and ensure that our oral health is always maintained in the best possible state. When brushing your teeth, it's worth spending a few more seconds gently scraping your tongue to make your mouth cleaner and healthier. At the same time, regular oral health check ups and professional dental cleaning services are also essential. They are key measures to maintain oral health and are worth each and every one of us adhering to and valuing.

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