Skin regenerates continuously and takes around 27 days to renew, whereas the growth of damaged skin varies depending on the nature and severity of the injury. It can take up to three weeks for scraped skin to recover, whereas burned skin can take months.
The outer layer of skin consists of dead skin cells that cover the epidermis, which is the uppermost live layer of skin. As skin cells perish, they either flake off or are removed by water.
Various methods, such as stitches for deep or large wounds that minimise the time required for new skin to form over the wound, can stimulate the growth of new skin over damaged skin.
