Petechiae on the tongue reflect the presence of bruising in a certain part of the body. Chinese medicine believes that the tongue reflects the five internal organs of the body, so problems in different parts of the tongue reflect lesions in the corresponding internal organs. Stasis points appearing in different locations on the tongue also reflect lesions in different internal organs, such as stasis of blood. The tip of the tongue can reflect the heart, so the presence of blood stasis on the tip of the tongue reflects a decrease in the function of the heart as the master of blood vessels, and stagnation of the heart vessels will lead to chest tightness and chest pain, such as angina pectoris attacks. The two sides of the tongue reflect the liver and gallbladder. If there are stasis points in this area, it reflects the stagnation of liver and gallbladder qi, which will lead to fullness and stabbing pain in the chest, migraine or pain in the vulva. The middle part of the tongue reflects the spleen and stomach. When there are stasis points on this part, it indicates stagnation of qi and blood in the middle jiao spleen and stomach, resulting in discomfort such as stomach pain or black stool. The root of the tongue reflects the kidneys. When there are petechial spots, it reflects stagnation of blood in the kidneys, which may lead to pain in the bones, inability to tolerate exertion, memory loss or even dementia.