Throat hemangiomas are vascular malformations, which may be due to the fact that the patient was born with a vascular malformation. As the patient ages, the blood vessels continue to abnormally proliferate, resulting in the formation of a hemangioma. Overall, throat hemangiomas are somewhat dangerous. When the hemangioma in the throat is small, the risk is relatively low, and the patient may only exhibit hoarseness, coughing up sputum, or blood in the sputum, which is generally not dangerous. However, if the hemangioma increases in size, it will be dangerous, and may block the vocal folds, which is the narrowest position for breathing, and an enlarged hemangioma blocking the passageway may cause the patient to be suffocated, and in severe cases, respiratory distress may occur. In addition, if the hemangioma ruptures for an unknown reason, such as coughing or other exertion that causes the hemangioma to rupture, it may cause severe bleeding, and a large amount of blood may enter the trachea and cause asphyxiation. Therefore, if a patient is found to have a hemangioma in the throat, it is recommended to go to the hospital for a clear diagnosis and then actively treat it. If it is found in the early stage, it can be removed by propped-up laryngoscopic surgery or cryoablation. However, if it is a larger hemangioma, tracheotomy may be needed first, followed by surgical removal.