Should sign, this is a civil act, the presenter should be responsible for his own statement, because it directly affects the doctor's judgment and treatment, but most of the statements are not important, and some special circumstances need to be stated to support the doctor's diagnosis and treatment, such as the statements of relatives of children patients and so on. This is to assist the doctor in diagnosis and treatment, and the patient has the right to refuse to state. Of course, it may increase the difficulty and time of the doctor's diagnosis, and the adverse consequences will not be borne by the doctor. The legal basis is the principle of cooperation, the principle of proof, the medical system and practice of civil law. The legal significance is to assist doctors in their work, improve curative effect and work efficiency, save social resources and benefit patients. In case of dispute, this can be used as necessary evidence.