Ablation is not necessary for infant arrhythmias. Physiologic arrhythmias do not require treatment, and some pathologic arrhythmias, require ablation. When an infant develops an arrhythmia, the first thing to look at is what is causing it. There are many causes of arrhythmias in infants, and they can be physiologic or pathologic. When an infant develops arrhythmia, it depends on whether it is episodic or frequent: if it is episodic, most of the arrhythmia is physiologic and related to the infant’s heart’s congenital imperfect development. A short period of irregular heartbeat or fast breathing may occur after the child cries. This condition is usually observed closely and does not require treatment if it does not develop. If an infant has frequent arrhythmias, it is important to go to the hospital to check the cause. A heart ultrasound can be done to rule out congenital heart disease, and if it is a heart valve problem, surgery is needed. If it is atrial flutter, atrial tachycardia or ventricular pre-systole, radiofrequency ablation is needed if medication is not effective. In infants with arrhythmia, it is recommended to improve the examination and follow the doctor’s instructions.