Right ventricular hypertrophy can be caused by a variety of reasons, some of which are chronic bronchitis and emphysema, which develops into pulmonary hypertension and leads to pulmonary heart disease, which can cause right ventricular hypertrophy. There is also hypertrophic cardiomyopathy, highlighted by right ventricular hypertrophy, which can also lead to right ventricular hypertrophy. There are also congenital heart diseases with left-to-right shunts, such as atrial septal defects, ventricular septal defects, and arterial catheterization, which can lead to right ventricular hypertrophy in the later stages of the development of these heart diseases. Valvular diseases, such as pulmonary stenosis, or congenital primary pulmonary hypertension, can also lead to right ventricular hypertrophy. Therefore, a cardiac ultrasound, combined with the patient’s medical history, is needed to make a definitive diagnosis.