If you enter this industry only by income, the income and contribution of doctors are not proportional. Generally, a hospital needs surgery, which is divided into many general surgery, thoracic surgery, brain surgery, neurosurgery and so on. Generally speaking, you must have a master's degree or above in surgery, most of which are doctoral degrees. After reading these books, you are close to 28, so you can't go to the operating table immediately. It takes at least 1-2 years to work independently under the guidance of teachers. Generally, good and mature surgeons are around 35 years old, and they can't have problems at work. Apart from the problem, you may end your career, because your hands are life. There are so many medical graduates every year that many students are not fit to be doctors. Doctors need not only a strong theoretical foundation, but also your practical ability, especially a good sense of surgery. Only with theoretical knowledge can you be a teacher, and you can really have outstanding theoretical and practical abilities. Otherwise, you can only be a medical student.