Peripartum Cardiomyopathy (PPCM) is a rare and specific form of dilated and fatal Cardiomyopathy which leads to systolic complication of the left ventricle. The disease usually begins slowly but its progression is fatal. Thus, the prognosis of the disease is often poor. Because of the low prevalence of the disease, extensive epidemiologic and clinical studies are not available. Few papers, most of which are retrospective studies, are available in Iran in this regard. The reported case was a 29 year old woman who matched all the criteria of PPCM presented in Braunwald textbook of cardiology. Contrary to ordinary ones, our patient had a sudden onset - with severe pulmonary edema after cesarean section, while she used to be absolutely healthy before the surgery. In spite of severe clinical condition and very low left ventricular ejection fraction (LVEF) on admission, her response to treatment was excellent and remained healthy in a 2 year’s follow- up, with a normal LVEF.