Is there such a thing as second puberty?

No, there is no such thing as a second puberty. Puberty is the period of physical development and sexual maturation during adolescence. It is a one-time event that typically occurs between the ages of 10 and 14 in girls and 12 and 16 in boys. Some individuals may experience delayed puberty, which means that their physical changes occur later than the average age. However, this is not a second puberty.