Tiger spot heart is usually caused by long-term chronic alcoholism, heavy alcohol consumption, or lack of oxygen in the body, resulting in degeneration of heart muscle cells, decreased elasticity of muscle fibers, and an overall tendency for the heart to enlarge, such as enlarged atria and enlarged ventricles. In addition, grayish-yellow stripes or plaques around the endocardium and papillary muscles, also known as tiger spots, may appear, and these plaques are mainly caused by fatty degeneration of the heart muscle. Therefore, once chronic tiger spot heart appears, you should go to the hospital promptly and give timely treatment through electrocardiogram, cardiac ultrasound and cardiac pathological puncture biopsy, etc. to clarify the cause.