Why Do Scabs Itch?

Answer

The body reacts to injuries by producing histamine, which is contained in the scab formation as part of the healing process. Histamines can irritate the skin and cause the scab to itch. Scabs itch when they start pulling away from the new layer of skin underneath them.
Q&A Related to "Why Do Scabs Itch?"
Scabs contain histamine as part of the healing process. These histamines irritate the skin and cause itching. The upper layer of the skin contains tiny nerves that are highly sensitive
http://www.ehow.com/facts_5840880_scab-itch_.html?...
I think its not the scab that causes the itching. The activities underneath the scab which undergoes repair and healing process release certain substances or chemicals that excite
http://answers.yahoo.com/question/index?qid=200609...
There are many things that make people itch. It could be a rash, medication, or another health related issue. If you are constantly itching, talk to your doctor for more information
http://www.ask.com/web-answers/Health/Other/why_do...
Scabs are basically a bunch of platelet proteins that gather at the surface of the cut. This happens for several reasons. First, it stops blood loss, which can be very dangerous.
http://wiki.answers.com/Q/Why_do_cuts_form_scabs
1 Additional Answer
Because the injury that caused the scab is starting to heal and this is indicated by the itching. Try some topical anti-itch creams to help the itch.
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