Toddling is an important milestone in a baby’s growth process. But if your baby walks relatively late or unsteadily, always wobbling and falling, like a duckling walking, parents should pay attention, don’t want to enjoy the baby’s cute appearance. This may be a case of developmental hip dislocation. If your baby seems to be walking like a duckling, parents should be aware that developmental hip dislocation is one of the more common congenital deformities in children Developmental hip dislocation, also known as congenital hip dislocation, is a condition in which the femoral head slips out of the acetabular socket when the newborn is born. It is mainly due to congenital dysplasia or abnormalities of the acetabulum, femoral head, joint capsule, ligaments and nearby muscles, resulting in joint laxity and causing hip joint subluxation or dislocation. Its incidence is about 1/250 to 1/1000, and it is more common in female infants. The cause is not yet completely clear, and may be related to the following factors 1, there is a clear family history of the disease, its incidence in the family can be as high as 20% to 30%. 2, joint ligament laxity is also an important factor. Women are affected by estrogen during childbirth, which makes the pelvic ligaments loose, and the fetus will also be affected accordingly, causing ligamentous laxity, resulting in the newborn being prone to femoral head dislocation. 3, 2~3 months of pregnancy is the period of fetal hip joint formation, during which various factors cause its growth to stop, which may cause the joint to dislocate before it develops normally; 4, fetal malposition and breech delivery make the hip joint suffer mechanical pressure in an abnormal flexion position, which may easily cause dislocation of the femoral head. Developmental hip dislocation is one of the more common congenital deformities in children Warm tips: For children with developmental hip dislocation, usually the younger the treatment, the better the results and the treatment will be relatively simple. Therefore, parents should observe their babies carefully, and if they find abnormalities such as late walking, wobbly or hobbling gait, they should take their babies to regular hospitals for examination as early as possible so as not to miss the best time for treatment.