Stasis blisters are blisters that develop in areas that have a lot of swelling and edema. One classic location is the legs that have become swollen as a result of venous stasis.
A stasis blister (also known as a venous stasis blister) is a blister that occurs in the setting of venous stasis. It is a tense fluid filled blister of the superficial layer of skin.
Anything that causes increased pressure in the venous system and subsequent edema or swelling can eventually result in a blister. The force that results from the build up of fluid pressure in the skin can result in separation of the superficial layers of skin from deeper layers of skin. The fluid that builds up within this separation creates a blister.
The treatment of a venous stasis blister involves treating the venous stasis present so areas of swelling are decreased.
- The blister itself does not necessarily require any treatment. If pain occurs in association with the blister, a healthcare provider may opt to insert a sterile needle to create a small opening and allow fluid to drain from it. It is desirable to leave the top of the blister in place, as it acts as a natural protective dressing to help protect underlying skin structures. If the fluid accumulation that led to the blister is due to an underlying medical condition, a physician may be able to discuss other treatment options to help reduce or eliminate the edema/swelling.
- An absorptive gauze or dressing may be used if there is drainage from the blister.