Dotted strong echoes are seen in the left ventricle on cardiac ultrasound. It is usually associated with thickening and calcification of the papillary muscles or tendon cords, as well as cardiomyopathy and infective endocarditis. 1. Thickening and calcification of the papillary muscles or tendon cords of the ventricles is usually seen in papillary myositis or papillary muscle injuries, which can cause localized inflammation that can lead to thickening or calcification over time. In severe cases, this can lead to malfunction or rupture. 2. When myocarditis or old myocardial infarction and other cardiomyopathies occur, it may also cause the intraventricular punctate strong echoes. The former can lead to inflammatory changes in the myocardium, manifested as thickening or calcification. In the latter case, ischemic necrosis of the myocardium occurs, resulting in the gradual formation of calcification. 3. Infective endocarditis can form inflammatory manifestations on the heart valves, which can be manifested as strong echogenic growths, mainly composed of platelets, fibrin and other components. When the patient performs cardiac ultrasound examination suggests that there is a left ventricle can be seen point-like strong echoes, should promptly consult a doctor to clarify the cause of the disease, under the guidance of the doctor to carry on the treatment.