Postpartum chills is a physiological response that occurs within two hours ofchildbirth. It appears as uncontrollableshivering. It is seen in many women after delivery and can be unpleasant. It lasts for a short time. It is thought to be a result of a nervous system response. It may also be related tofluid shifts and the actual strenuous work of labor. It is considered a normal response and there is no accompanyingfever. A fever would indicate aninfection. Reassurance is all that is needed and for the mother to be kept warm. It has been described as a fairly common and normal occurrence.[1][2] It is thought to be possibly related to the environmental temperature.[3]