The overall size of the ribcage typically stops growing between the ages of 20 and 30 years.
Ribcage Growth and Changes
While the overall size stabilizes in early adulthood, some changes can still occur. Research suggests that there might be subtle shifts in rib angles throughout adulthood, potentially affecting the shape of the chest (Kent and Lee, 2005b, Weaver and Schoell, 2014). These changes, however, are inconsistent.
Key Takeaways:
- Age Range: The primary growth phase concludes around 20-30 years old.
- Subtle Adjustments: Minor changes in rib angles can occur later in life but are not consistent across individuals.
- Overall Size: The main size of the rib cage is typically set by early adulthood.
