Hypertrophic obstructive cardiomyopathy is a type of cardiac hypertrophy, accompanied by obstruction of the blood outflow tract, i.e., a type of disease in which blood discharge is blocked. Anatomical characteristics: the human heart is divided into right and left atria and right and left ventricles, and blood flows into the ventricles through the atria, and then enters the body circulation or pulmonary circulation through the arteries. Hypertrophic obstructive cardiomyopathy usually manifests as thickening of the ventricular muscle, mostly in the left ventricle, with the septum being the most important, resulting in a decrease in the volume of the left ventricular cavity; at the same time, the myocardial hypertrophy of the left ventricle flowing into the aorta’s outflow tract, which causes difficulties in the ventricle’s blood discharge, resulting in obstruction. (2) Clinical symptoms: due to the different degree of hypertrophic obstruction, different symptoms can appear, including: (1) dyspnea: due to the left ventricular end-diastolic pressure increases, long time the pulmonary circulation stagnation, so it can cause the decline of the left heart function, and exertion dyspnea; (2) chest pain: due to the hypertrophied myocardial oxygen demand increases and the coronary arteries are relatively insufficient, in the labor of the cardiac muscle insufficient blood supply, the anterior region of the heart pain; (3) Weakness and dizziness: the heart rate is accelerated during activities and the diastolic period of the heart is shortened, which leads to insufficient ventricular filling, reduced cardiac output, and insufficient blood supply to organs leads to weakness and dizziness, and fainting can occur in severe cases; 3. Examination: hypertrophic obstructive cardiomyopathy can be clearly diagnosed by echocardiography and the severity of the lesion can be judged to determine the treatment plan. 4, treatment: generally for obstruction is not serious situation for internal targeted drug treatment; symptoms are obvious, repeated syncope, angina pectoris and other cases need surgical treatment. Hypertrophic obstructive cardiomyopathy is due to structural changes in the myocardium caused by a class of diseases, severe obstruction, clinical symptoms need to go to the hospital in time, under the guidance of the doctor for related treatment.