Right ventricular hypertrophy, caused by diastolic and systolic overload of the right ventricle, includes ventricular hypertrophy as well as enlargement, with ventricular hypertrophy predominating in cases of pressure overload and ventricular enlargement in cases of volume overload, and often both hypertrophy and enlargement after a long period of loading. The thin atrial wall, regardless of the type of overload, generally manifests as enlarged right atrium and right ventricular hypertrophy, which are the most common consequences of organic heart disease. When it reaches a certain level, it manifests itself on the electrocardiogram. Treatment of right ventricular hypertrophy requires identifying the underlying cause and making different treatments for different causes.