Several factors can contribute to clavicle fractures during birth: - [Macrosomia](https://): Babies with a birth weight of more than 8 lbs 13 oz (4000 grams) are at a higher risk. - [Shoulder Dystocia](https://): Difficulty in delivering the baby's shoulder after the head has emerged can exert excessive pressure on the clavicle. - [Instrumental Delivery](https://): The use of delivery instruments like forceps and vacuum extractors can increase the risk. - [Breech Delivery](https://): Deliveries where the baby is positioned feet-first or buttocks-first can also pose a risk.