Men usually stop growing in height after puberty, around the age of 18. This is when the growth plates (areas of cartilage at the ends of long bones) fuse and stop producing new bone, marking the end of vertical growth. However, some men may continue to have growth spurts until their early 20s, but significant growth after 21 years is unlikely. After this age, growth in height normally does not occur, though men can still gain muscle mass or appear taller through posture and other means. In summary:
- Typical age to stop growing: around 18
- Possible continued growth: until early 20s, but rare and minor
- Growth stops definitively when growth plates fuse, usually by 21
- No growth in height expected after the early 20s
This variation depends on genetics, health during childhood, and hormonal factors.
