A Pencil testdeveloped by Ann Landershas sometimes been promoted as a criterion to determine whether a girl should begin wearing a bra: Not to be confused with Sports bra. During the s, doctors in the United States wrote that teen girls needed to wear a bra to prevent sagging breasts, poor circulation, and stretched blood vessels. Some girls avoid wearing a bra because it means they must deal with teasing and other issues with the onset of puberty. The design of fashionable rather than solely functional bras  has been influenced by changing fashions in outerwear and undergarments. Archived from the original on March 28, Because bras are mass-produced to fit industry standards, a young girl may not understand that an ill-fitting bra is not her fault and may blame herself, thinking something is wrong with her body.
Mercy Dobell, editor of Corset and Underwear Reviewwrote that "the bra has joined lipstick and 'heels' in becoming one of the beloved symbols of growing up.
During the s, doctors in the United States wrote that teen girls needed to wear a bra to prevent sagging breasts, poor circulation, and stretched blood vessels. Girls who are developing breasts are at Tanner stage I and II. Not to be confused with Sports bra. An Encyclopedia, Volume 1. Girls are then faced with the challenge of keeping current and wearing the latest, fashionable bra. As your breasts develop, you may need a bra. On Female Body Experience: