The bone healing duration may vary, depending on the severity of the issue and how quickly your body responds. While some fractures can heal in as early as 3 weeks in children, they may take about 6 weeks in teens and adults. Also, some fractures may take as long as 10 weeks to heal, and it may take even longer for you to return to your normal activities.ies. Dr. Betsy adds, “It’s important to note that surgery for fractures does not necessarily make them heal faster. It is usually performed to help them to heal in the correct position when correct alignment cannot be achieved or maintained without surgery.”