Does swaddling have any adverse effects?

There is an increased risk of the development of hip dysplasia, which is related to swaddling with the legs in extension and adduction (straight and together). There is some evidence that there is a higher risk of respiratory infections related to the tightness of swaddling. Swaddling immediately after birth can cause delayed postnatal weight gain under certain conditions, but does not seem to influence breastfeeding parameters.