Many parents and most orthopedic surgeons are unaware of and unfamiliar with flatfoot in children and adolescents. First, a few concepts need to be clarified: A flat foot that produces pain and decreased mobility is referred to as a flatfoot disorder. The majority of flat feet that occur in preschoolers after standing and bearing weight are physiologic flat feet. Normal arches form around the age of 6-7 years, after which if the foot remains flat, most do not recover naturally, and in some patients, it progressively worsens to the point of developing a flatfoot disorder that may require surgical intervention. Physiologic flatfoot basically requires conservative treatment, with the placement of an in-shoe arch cushion being a good option, and an AFO (articulating ankle-foot brace) being preferred if there is significant valgus in the heel. after 7 years of age, most patients will remain pliable and flatfooted if they remain flatfooted. In the authors’ experience generally at 10-14 years of age some patients become symptomatic, i.e. flatfooted. Surgical intervention is required. Current surgical interventions for symptomatic flexible flatfoot include: heel osteotomy (heel lengthening); subtalar joint braking. In children and adolescents with flat feet, there is a distinct pathologic change in the hypermobility of the talus over the heel bone during weight bearing or known as subluxation. Hyprocure brake bolt implantation technique was introduced in China in 2012 and has been carried out in Beijing and Shenyang (Shengjing Hospital) for the treatment of children and adolescents with flatfoot. The incision is very small (2cm) and work and school are resumed soon. It is welcomed by the majority of patients. If there is a combination of Achilles tendon contracture, paravalvular bone and other pathological changes, it needs to be solved together with surgery. Achilles lengthening requires osteotomy of the heel bone and weightlessness for 2-3 months after surgery. For rigid flat feet, most of them need osteotomy and soft tissue surgery, and the long-term outcome is not good. Therefore, families and orthopedic surgeons should emphasize the importance of early flexible flatfoot in children and adolescents, with bracing or surgical intervention to prevent ongoing progression.