Use open probing questions about concerns and what has been noticed – consider pain, mood change, swelling, change in function (sport / play / school), limp or 'clumsiness'. Explore presence of symptoms to suggest serious illness ('Red flags') including malignancy, infection or non-accidental injury. Consider risk factors for infections relevant to endemic areas (e.g., Tuberculosis, Human Immunodeficiency Virus, Brucellosis, Acute Rheumatic Fever, Dengue). Consider the course of symptoms and asking whether they have progressed; a static state of symptoms over a long time may be less concerning than a rapidly progressing history with increasing concerns.