Striae distensae, commonly known as stretch marks, are a type of skin marking characterized by visible, linear streaks or stripes that often appear on the surface of the skin. These marks typically have a different color or texture than the surrounding skin and can vary in length, width, and intensity.
Stretch marks are primarily caused by the stretching and tearing of the middle layer of the skin, known as the dermis. This stretching often occurs due to rapid changes in body size or shape, such as during pregnancy, adolescence, significant weight gain or loss, or growth spurts. The rapid expansion of the skin causes the collagen and elastin fibers in the dermis to rupture, leading to the formation of striae distensae.
The appearance of stretch marks typically starts as reddish, purplish, pink, or reddish-brown streaks on the skin. Over time, they may fade into a lighter shade, resembling silvery, white, or pale lines. Although they are primarily harmless and do not cause any physical discomfort, striae distensae can be a source of aesthetic concern for some individuals.
Various treatments, such as topical creams, laser therapy, micro-needling, and surgical procedures, are available to help reduce the appearance of stretch marks. However, complete eradication of stretch marks may not always be possible.
Overall, striae distensae are a common dermatological condition characterized by visible skin markings resulting from the stretching and tearing of the skin's middle layer, typically occurring in response to rapid changes in body size or shape.
