There are obvious petechiae on the tip of the tongue. When there are obvious petechiae on the tip of the tongue, it means that the body will form congestion. If there are bright spots or black spots, it means that the body is congested. The capillaries in our tongue flow very smoothly. Under normal circumstances, the tongue should be red. If the capillaries of the tongue block the blood, it will gradually turn black. Black spots on the tip of the tongue indicate poor blood circulation.
There will be two veins under the tongue, which should be light blue under normal circumstances. If the vein under the base of the tongue is thick and black and branches around, it means that the congestion is very serious. The tip of the tongue is inclined. Under normal circumstances, when the tongue sticks out, the tip of the tongue should be forward. If the tip of the tongue was normal before, you should pay attention to the recent deviation. If the patient's tongue is naturally deviated, it is a physiological condition. The non-physiological deviation of the tip of the tongue indicates that there is disease in the body, and the deviation of the tip of the tongue indicates which side of the head has congestion. When the tongue turns purple or blue, the body will be congested. If the tongue coating is full and ecchymosis appears, it means that the water in the body is too serious. Tongue coating represents a person's stomach qi.
Under normal circumstances, the tongue coating is a thin layer of white. If the tongue coating is yellow, it means that the body has heat syndrome. The yellower the tongue coating, the more serious the fever. The tongue coating is gray and black, indicating that the body is cold and wet. Pale tongue color and thin white tongue coating are generally caused by deficiency of both qi and blood. Thick and dry tongue coating may indicate enteritis or gastritis. Thickness of tongue coating, if the tongue coating is too thin, it means deficiency of both qi and blood. If the tongue coating is thick, accompanied by bad breath, thirst, bitter taste and constipation, it is caused by excessive internal heat.