In children up to 7 years of age, there is physiological flat feet, which means that children's flat valgus foot is a natural stage in the development of the lower limbs. In order to stimulate the outgrowth of physiological valgus, give the child plenty of exercise, and especially allow the child to walk barefoot on a variety of surfaces - this stimulates the foot muscles to work. Flat feet should always be monitored, especially in cases where there are aggravating factors: excessive joint laxity, overweight, muscle tone disorders or abnormalities in the hips. The final decision as to treatment is made by the orthopedic surgeon after thorough diagnostics. Conservative treatment includes exercises to strengthen the feet, exercises to stimulate the correct positioning of the lower limb and the possible wearing of orthopedic insoles. The indication for surgery is painful flat feet, rapidly progressing and not amenable to conservative treatment.