Abnormal segmental motion of the left ventricular wall is a description of cardiac motion during ultrasound examination, and the corresponding condition is mainly indicative of a possible myocardial infarction. Under normal conditions, the left ventricular wall myocardium moves in unison and does not contract abnormally; after myocardial infarction, the myocardial activity in the corresponding region decreases, and the myocardium in the corresponding region does not move in unison in the course of normal myocardial contraction, and this is manifested as abnormal segmental motion under ultrasound, and the range of segmental motion abnormality can be used to determine the scope of myocardial infarction in a rough way. The presence of obvious segmental motion abnormalities of the left ventricular wall, accompanied by obvious symptoms such as chest pain, dyspnea, etc., need to consult a doctor in a timely manner, after confirming the diagnosis of the condition, under the guidance of the clinician to carry out standardized treatment.