What causes blanching of skin? 17 possible conditions
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Blanching of skin occurs when the skin becomes pale in response to gentle pressure.
Blanched skin, skin blanches, skin turns white.
Detecting changes in skin color is challenging because there is such a wide range of skin coloration in all individuals. Subtle changes like skin blanching may occur gradually over time, or there may be a sudden onset. Blanching of skin is usually a localized reaction and may be a sign that the skin tissue is not receiving its usual blood supply due to swelling, cold, or other problems, such as insufficient blood flow through the vessels.
- Raynaud’s phenomenon
- Insect bites and stings
- Pressure ulcers
Diagnosis and Treatment
Doctors are continually developing tools for effectively measuring skin blanching in individuals with varying amounts of melanin pigment in the skin. Although a subtle symptom, blanching of the skin remains an important indicator of overall health. A comprehensive examination, history and physical are required and diagnostic studies such as laboratory tests may be necessary. Treatment will depend on the underlying condition.
Call 911 if:
Blanching of the skin is accompanied by:
- Dizziness or fainting
- Air hunger or gasping for breath
- Shortness of breath or breathing difficulties
- Chest pain
- Sweating profusely
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