This article explains the orthopedic approach to limping in children. This is a review article including a selected collection of new articles extracted from PubMed and Google Scholar searched for clinical points and beneficial approaches to limping children. In this paper, limping is divided into two categories, painful and painless. After stating the important points in the patient's medical history and explaining specific examinations in this area, different gait types in children are explained and the best evaluation method for them is presented. Then, paraclinical examinations and imaging are described in a practical evaluation, high-risk etiologies of limping such as infections, tumors, and fractures are explained in detail and red flags are considered at each step. The algorithms and the list of differential diagnoses for each age group are included, which can provide physicians with a more comprehensive approach to limping in children.