The risks of complications from an upper GI endoscopy are low, but may include. 1  bleeding from the site where the doctor took the tissue samples or removed a polyp. 2  perforation in the lining of your upper GI tract. 3  an abnormal reaction to the sedative, including breathing or heart problems.
The average age of women having their first child was a record high of 26 years old in 2013, according to the Centers for Disease Control and Prevention's National Vital Statistics Report.
The average age is 12, but this does not mean that all girls start at the same age. A girl can start her period anytime between the ages of eight and 15. Usually, the first period starts about two years after breasts first start to grow. If a girl has not had her first period by age 15, or if it has been more than two to three years since breast growth started, she should see a doctor.