How do you know when your puberty has stop?

Interesting Question: People are usually worried worried about late or early onset of puberty. You are worried about when it will stop. Perhaps you are concerned about too much or too little of something about what puberty has done to your body. Please meet with your physician to address your specific concern. Puberty stops at 17 (girls) and 18 (boys) usually. See wikipedia for detailed review on puberty.

Puberty: Puberty is the transition of the body to the sexually mature adult form. It encompasses many aspects of development that take a child to a sexually functional adult. In essence then, puberty ends when the body is fully developed as an adult and is reproductively functional (ovulation for women and making sperm for men). Each individual will develop at their own pace along this continuum.