Both boys and girls can be affected by early or delayed puberty. Often, this is not a reason to worry because some children are just naturally early or late bloomers. However, concerned parents should still speak with their children’s doctors to rule out any potential abnormal underlying causes. In this video, http://www.WatchMojo.com speaks with Dr. Preetha Krishnamoorthy, a pediatric endocrinologist at The Montreal Children’s Hospital , to learn more about puberty, what constitutes early and late puberty, at what point a parent should become concerned with his or her child’s development and what treatment options are available for these issues.