VesiclesDefinition: A vesicle is a small fluid-filled blister. See also: Bulla
Alternative Names: Blisters
Considerations: A vesicle is small -- it may be as tiny as the top of a pin or up to 5 or 10 millimeters wide. In many cases, vesicles break easily and release their fluid onto the skin. When this fluid dries, yellow crusts may remain on the skin surface.
Common Causes: Many diseases and conditions can cause vesicles. Some common examples include:
Home Care: As a general rule, your doctor should examine any skin rashes, including vesicles. Over-the-counter treatments are available for certain conditions that cause vesicles, including poison ivy and cold sores.
Call your health care provider if: Call your doctor if you have any unexplained blisters on your skin.
What to expect at your health care provider's office: Your doctor will look at your skin. Some vesicules can be diagnosed simply by how they look. In many cases, however, additional tests are needed. The fluid inside a blister may be sent to a lab for closer examination. In particularly difficult cases, a skin biopsy may be needed to make or confirm a diagnosis.
References: Goldman L, Ausiello D. Cecil Textbook of Medicine. 22nd ed. Philadelphia, Pa: WB Saunders; 2004. Habif TP. Clinical Dermatology. 4th ed. St. Louis, Mo: Mosby; 2004.
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