What’s with the purple patches on the tongue?

Purple patches on the tongue may be caused by food coloring, cardiovascular disease and cerebrovascular disease.
1. Food coloring: Purple patches on the tongue may be caused by consuming a large amount of food containing purple coloring, which will stain the surface of the tongue and lead to purple patches on the tongue.
2. Cardiovascular disease: purple patches on the tongue with chest tightness, dyspnea, palpitation, insomnia, irritability, chest pain, then there may be cardiovascular disease.
3. Cerebrovascular disease: purple patches on the tongue, accompanied by dizziness, headache, blurred vision and other symptoms, there may be cerebrovascular system diseases.
If you have purple patches on your tongue, pay attention to rest and keep a good mind. Strengthen exercise, pay attention to oral hygiene, supplement vitamins. At the same time, the discomfort needs to go to the hospital in time to find out the cause of the disease, under the guidance of the doctor for treatment.