Clinical ultrasound is easy to learn. With clinical theory, the thinking of ultrasound diagnosis will be clearer. It is suggested to study while studying, look at more pictures and do more work. Reading before studying can only waste time. Clinicians are clinicians. Up to now, there are 24 kinds of clinicians in China, all of which need to be certified by the national examination for practicing doctors or assistant practicing doctors. He must first be honest, modest and respect patients. Of course, doctors are not saints, they also have to support their families, but doctors should make money like an old China adage: "A gentleman loves money and takes it wisely". To be a doctor, you must be modest. You don't have enough knowledge. If you don't understand the disease, you must consult an experienced medical student or an experienced superior doctor. Don't be afraid of losing face in front of patients. Failure to pretend to understand will lead to misdiagnosis and bring great sorrow to patients and their families. Clinicians should have superb skills, exquisite medical skills and rich clinical experience, which can really cure diseases, restore patients' health, eliminate patients' physical and mental pain and restore patients' organ functions with the shortest course of treatment and the most effective methods. As a clinician, you must pay attention to your professional ethics. If the patient's disease you diagnosed is really incurable, you should tell his family not to spend money on treatment. If you know that the patient's disease can't be cured, it is very immoral for you to treat him and make people spend a lot of money. In the eyes of ordinary people, good doctors are probably those big doctors who are crowded with people! This is not a good doctor. This kind of doctor holds a signboard or publishes several papers, taking the pulse with his left hand and prescribing with his right hand. This is responsible for the patients or their technology really beats Bian Que! ? So what is a good doctor? A doctor who regards the patient's life as his own, a doctor who dares to admit his mistakes and shortcomings and can correct them in time, a doctor who is diligent and enterprising, a doctor who learns from others, is rigorous and realistic, a doctor who stresses science and procedure, and a doctor who is good at listening to patients' voices is a real clinician!