Curved calf bones in infants may be normal, but it also depends on the actual situation, and may also be related to calcium deficiency or lack of sports and exercise. If an infant develops a bent calf, it is generally a relatively normal phenomenon. If a slight curvature is found when walking around the age of one week, it is generally normal and does not require any special treatment or therapy. However, if the curvature of the calves persists as the child grows older, it is likely to be abnormal and may be related to calcium deficiency, lack of exercise or disease. Therefore, if this condition persists, it is advisable to seek medical attention to identify the cause and treat the symptoms.