Foot pain in children is a very common and potentially serious condition. Children's feet are anatomically and biomechanically different than adult feet. Due to immaturity and unfinished bone ossification they are susceptible to some diseases specific for that age. In cases of acute onset of pain trauma is the most common cause. When pain develops gradually and becomes chronic, diagnosis is often difficult as many diseases can be the underlying cause. Disorders of bone formation and segmentation result in accessory bones or tarsal coalition. Juvenile osteochondroses such as Sever, Kohler, Freiberg, and Iselin disease are caused by overuse and insufficient vascularization. Even at this young age some deformities like hallux valgus can develop and cause pain. Osteomyelitis (bone infection) and some bone tumors, like osteoid osteoma and osteosarcoma, must also be taken into consideration. These conditions can be differentiated by proper medical history and examination in addition with radiographic imaging. It is essential to find the cause as soon as possible because delay of treatment increases the probability of progression and complications. Most causes of foot pain can be successfully treated with conservative measures, but in serious conditions, and if the pain persists, surgical intervention may be necessary. Every untreated foot disease in children can result in problems and inability to walk later in life.