PPCM is an idiopathic, multifactor cause of heart failure occurring at the end of pregnancy or in the first months after delivery; 23‐kDa PRL and the production of a cleaved 16‐kDa fragment of PRL have emerged as potential key factors in the pathophysiology of PPCM,60 of which 16‐kDa PRL serves as the main trigger of PPCM.61 Here, PRL is linked to heart failure.