The article provides basic explanation of "syndrome of contractures" (Mau) at newborns and babies and it's conjunction with biomechanical etiology of the so-called idiopathic scoliosis (Karski 1995-2006). The authors analyzed children with "syndrome of contractures" and noted its relevance to some clinical symptoms at children with scoliosis. Newborns and babies with clinical signs of "syndrome of contractures" require further spine examination already at age of 3-4 in order to detect "danger of oncoming scoliosis" and to introduce neo-prophylaxis. The research based on "syndrome of contractures" can explain predominance of female gender of patients with scoliosis, sides of curves, side of rib hump, progression and sensibility to new rehabilitation exercises.