Type 3 aortic coarctation is more serious and may jeopardize life and health, and needs to be treated promptly under the guidance of a doctor to avoid any impact on life and health. Aortic coarctation refers to aortic intima-media tear, the lumen of the blood into the middle layer of the arterial wall to form a sandwich hematoma, and the formation of arterial true and false lumen pathological changes. Type III refers to a lesion that originates at the open end of the left subclavian artery in the descending aorta and extends distally up to the abdominal aorta, type a involves only the thoracic descending aorta, and type b involves the thoracic and abdominal aorta. Type III indicates more severe symptoms and may present with symptoms such as chest and back pain, and is usually treated by interventional procedures such as descending aortic overlay stenting to compress the tear and enlarge the true lumen. There are also surgical procedures to repair the tear, empty the false lumen and reconstruct the aorta. Avoid excessive emotional ups and downs, do a good job of patient’s psychological communication, do not have too much psychological pressure and psychological burden, pay attention to nutritional supplementation, eat more fresh fruits and vegetables, and eat more food with high protein content. If there are any symptoms of physical discomfort, you should go to the hospital in time and get treatment according to the doctor’s instructions.