There are many reasons why the tongue turns purple. For example, some people eat more mulberries or fruits with more purple pigments in their lives, which will affect the purple tongue coating. If the food or medicine people usually eat contains some kind of pigment, then after eating it, people will have a certain reaction to our tongue, making it purple. Of course, food-borne or drug-induced diseases generally do not bring other uncomfortable symptoms to the body, so naturally there is no need to worry too much. For this purple tongue coating caused by food, it usually disappears in 2~3 days.

Of course, some people will have purple tongue because of physiological factors, such as cold, so this situation will also lead to purple tongue. If a person is cold and doesn't keep warm, sometimes not only the tongue will turn purple, but also the lips may turn purple. This is mainly because the blood supply is too cold and the blood can't effectively warm these parts. This will also happen. Physiological purple caused by a cold should be kept warm in time to avoid discomfort.

External factors may also cause the tongue to turn purple. For example, collision or biting may cause the tongue to turn purple. Usually, kicking things with your feet may lead to bruises. The tongue is a sensitive part and must be protected. Once affected by external factors, it is not easy to recover and cannot be careless.

This disease can cause the tongue to turn purple. For example, excessive liver fire or blood stasis in the body may lead to purple tongue, so you should know your physical condition and go to the hospital to check what disease causes purple tongue. Usually, patients with hypertension and hyperlipidemia are prone to purple tongue, liver function is damaged, and bad detoxification can also cause purple tongue.