Clinical ultrasound is very good to learn, there is clinical theory, ultrasound diagnosis thinking will be more clear. It is recommended to study while pursuing further education, and to look at more diagrams and more hands-on. The first book and then further training can only delay the time. Clinician is a clinician, so far, China's clinician **** divided into 24 kinds, all need to be certified by the national practitioner or assistant practitioner exams he first of all, honesty, humility, respect for patients. Doctors are not saints, of course, they also have to support their families, but the doctor to earn money as an old Chinese maxim: "the gentleman loves money, take the way". To be a doctor, one must be modest, one's knowledge is not enough, and if one cannot understand a disease, one must ask for advice from an experienced doctor or consult an experienced supervisor. One must not be afraid of losing face in front of the patient, and not pretending to understand will lead to misdiagnosis and bring great sorrow to the patient and his family. Clinicians should have high technology, exquisite medical skills, rich clinical experience, can really cure the disease, with the shortest course of treatment, the most effective way to restore the patient's health, the patient's physical and mental pain elimination, restoration of the patient's organ function. As a clinician must pay attention to their own professional ethics, if you diagnosed this patient's disease really can not be cured, you have to tell his family not to spend money on treatment. If you know clearly that the patient's disease cannot be cured, you still give him treatment and make him spend a lot of money, which is very unethical. I am afraid that a good doctor in the eyes of the general public is one of those big doctors with a big doorstep! This is not a good doctor. This kind of doctor holds a signboard or publishes a few papers, and prescribes with his left hand on the pulse and his right hand, which is responsible for the patient or their skills are really better than a magpie! What is a good doctor then? A patient's life as their own life as a doctor, a courage to admit their own mistakes and shortcomings and can correct such errors in a timely manner, a hard-working and progressive doctor, a learn from all the strengths of the doctor, a rigorous and realistic doctor, a talk about science, talk about the procedures of the doctor, a good listening to the patient's voice of the doctor is the real clinician!