Question: my son has bo at 7?
Answer: Body odor usually is a sign of puberty “Body odor signaling the start of puberty can start as early as age 7 for girls and age 9 for boys,” said Dr. Kathryn Schaus, a Marshfield Clinic pediatrician. If body odor starts before age 7-9 or smells strange, make an appointment with your child's pediatrician.