Why Do Scabs Itch So Much?
People usually get scabs when they fall down and scrape their knee or other parts of their body. The blood platelets then coagulate and bind with fibrin to cover the cut, according to Kidshealth.org. Over time, the wound will heal and the scab will start to itch. There are several reasons why scabs usually itch.
-
Significance
-
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.
Effects
-
People have nerves in the upper layer of their skin that are highly sensitive. When a scab forms, the surrounding nerves can send the brain an itching signal. The brain may misinterpret that signal and think the person's skin is being tickled, according to Life123.com.
-
Theories/Speculation
-
There are those who believe that scabs itch when they start pulling away from the new layer of skin underneath them.
Other Theories/Speculation
-
According to Getridofthings.com, a popular health blog, and the article "How To Get Rid of Scabs," scabs function best during the healing process when they are dry. Thus, the dryness of the scab and surrounding skin may contribute to the itching.
Prevention/Solution
-
A person should allow a scab to fall off on its own without picking at it. One can use over-the-counter anti-itching medications or ointments to assuage their itching symptoms.
-
