Stretch marks are caused when the skin rapidly stretches as a result of sudden growth or weight gain. The stretching causes the middle layer of skin (dermis) to tear, allowing the deeper skin layers to show through, forming stretch marks.
The dermis contains strong, inter-connected fibres that allow your skin to stretch as your body grows. However, rapid growth can cause the skin to over-stretch and break the fibres. The tears in the dermis allow the blood vessels below to show through, which is why stretch marks are often red or purple when they first appear.
When the blood vessels eventually contract (get smaller), the pale-coloured fat underneath your skin will be visible, and your stretch marks will change to a silvery-white colour.
Stretch marks can occur anywhere on the body where skin has been stretched, but they usually affect areas where fat is stored, such as:
Many people find stretch marks unsightly and look for treatment to reduce their appearance.
We have a number of solutions to stretch marks including: