Pain assessment tools are often used by patients to report their pain and by health professionals to assess patients’ reported pain. Although valid and reliable assessment of pain is essential for high-quality clinical care, there are still many patients who experience inappropriate pain management. The aim of this scoping review is to examine an overview of how hospitalized patients evaluate and report their pain in collaboration with nurses. Systematic searches were conducted, and ten research articles were included using the PRISMA guidelines for scoping reviews. Content analysis revealed four main themes: 1) the relationship between the patient and nurse is an important factor of how hospitalized patients evaluate and report their post-surgery pain, 2) the patient’s feelings of inconsistency in how pain assessments are administered by nurses, 3) the challenge of hospitalized patients reporting post-surgery pain numerically, and 4) previous experiences and attitudes affect how hospitalized patients report their pain. Pain assessment tools are suitable for nurses to observe and assess pain in patients. Nevertheless, just using pain assessment tools is not sufficient for nurses to obtain a comprehensive clinical picture of each individual patient with pain.