Dec 06, 2017 · Causes of Breast Growth in 20s. In most women, the breasts have fully developed by age 23. However, there may be certain reasons that cause breasts to increase in size during the 20s. The change in the size of breasts can be temporary and last from a few days to a few weeks and sometimes they can be permanent. Sudden breast growth occurs more commonly in women, although it can happen to men as well. Sometimes it is just a growth spurt, but other times, there is an underlying problem that requires medical attention. Understanding the possible causes for sudden breast growth will allow you to take the proper measures and ask the appropriate questions.
Mar 27, 2017 · Normal breast development happens throughout the majority of a woman’s life. It begins before you’re born, ends at menopause, and has several Author: Diana K. Wells. Some men get enlarged breast tissue. It’s called gynecomastia. Maybe you've heard people call the condition “man boobs.” It’s usually not anything to worry about. Nor does it have to be Author: Stephanie Booth.