The document discusses evidence-based studies presented at puerperium. It defines key terms like puerperium, evidence, evidence-based studies, evidence-based nursing, and evidence-based medicine. It discusses the objectives, goals, aims, needs, process, components, pillars, principles, sources, and barriers of evidence-based studies. It also summarizes two studies - one on the effectiveness of lukewarm water compression on nipple pain and breast engorgement among postnatal mothers and another on the effectiveness of foot and hand massage on cesarean pain among postnatal mothers.