The clinical manifestations of the constrictor include mild external vomiting of the tongue. Hanging is mostly due to psycho-emotional factors, or seen in patients with delusions and other symptoms of psychosis. Self-restraint can lead to serious damage to the brain and various organs of the body. However, the degree of damage varies depending on the thickness of the hanging rope, the gravity of the body and the length of time. In addition, canker sores can also cause mild tongue exstrophy. Canker sore, also known as “purple tongue swelling”, is a condition in which a child is born with a canker sore on the tongue during the first six or seven days of life. This disease can occur alone or in the course of other diseases. It is mainly due to fetal toxicity, heat from the lung and stomach, and fire and blood congestion in the heart meridian. The child’s pharynx is congested, the pendulous lobe is enlarged, white purulent secretions are visible on the surface, and some of the spots break down to form superficial ulcers. Blood tests usually show an increase in white blood cells, mainly neutrophils; C-reactive protein is significantly increased or strongly positive; ESR is increased; blood cultures may be positive; and pharyngeal secretions can be cultured to detect pathogens. The main causes of canker sores are external wind-heat, improper care or improper feeding, or the parents’ Yang-heat and fire-heat, resulting in a strong fetal fire, fetal toxicity, heat from the lungs and stomach, and fire and blood congestion in the heart meridian. Children are pure yang body, if the fire in the fetus is strong, or if there is heat in the stomach, it is easy to attack and develop this disease.