A skin lesion that blanches with pressure refers to a type of skin abnormality that changes color upon the application of pressure. When pressure is applied to the lesion with the finger or any other instrument, the color of the lesion will temporarily fade or disappear and then reappear once the pressure is removed. This particular type of lesion is known as a “blanching lesion.”
Blanching lesions can manifest in various shapes and sizes, and their causes can range from simple allergic reactions to more complex medical conditions like vascular or dermal issues. Some common blanching lesions include urticaria (hives), which are red, itchy bumps that typically appear as an allergic reaction to an irritant or allergen. Other examples include cherry angiomas, which are benign skin growths that develop as clusters of small red or purple spots on the skin.
Blanching lesions can be a cause for concern, particularly if they manifest in uncommon or unusual shapes, are accompanied by other symptoms such as pain or itching, or persist for extended periods of time. Therefore, it is always advisable to seek the opinion of a qualified healthcare professional if you observe any such skin lesion that blanches with pressure. Your doctor would be in the best position to diagnose the underlying cause of the lesion, prescribe a suitable treatment, or refer you to a specialist for further examination.