Ventricular septal defect is a type of congenital heart disease, and surgical treatment is recommended for patients. Currently, to diagnose this condition, it is advised that patients undergo a cardiac echocardiography rather than just a standard ultrasound, which does not show clear results. Color Doppler ultrasound is the best way to make an accurate diagnosis and therefore determine the appropriate treatment plan. It is possible to see the size and location of the ventricular septal defect, which can significantly aid the treatment planning. Standard ultrasound may not provide a clear view and can sometimes lead to discrepancies, making treatment challenging. During this period, regular follow-up with cardiac echocardiography is still necessary, and early surgery is recommended for patients.