To be clear, I'm NOT asking what factors may trigger an itch. So the answer is not "allergies" or "excema," for exampe. Rather, what is the physiological cause of an itch?
2006-12-19 10:35:51 · 5 answers · asked by Anonymous in Health ➔ General Health Care ➔ Other - General Health Care
The last I read, an itch is thought to be something akin to a pain signal sent from a specific area. Your body perceives the irritant (allergies, fiberglass, etc) as being "damage" and so sends a signal to your brain that you've been "injured."
2006-12-19 10:42:38 · answer #1 · answered by Digital Haruspex 5 · 0⤊ 0⤋
The brain is sent impulses of annoying irritation being experienced at some site on the surface of the body, the skin being attacked by some alien force, so the brain sends messages to the fingers to scratch, brush, rub, massage, slap, whatever the brain interprets is needed to cause the irritation to cease.
2006-12-19 18:42:26 · answer #2 · answered by Faerie loue 5 · 0⤊ 0⤋
itching is how the body responses to get rid of something on the skin that is an irritant. Or it could be coming from within.. It could be bile secreting form the skin( common in pregnant women). The skin being the largest organ of the body, communicates to the brain and itching is one of those ways to communicate.
2006-12-19 18:46:28 · answer #3 · answered by Tamera A 1 · 0⤊ 0⤋
It can be a low grade pain.
2006-12-19 18:38:30 · answer #4 · answered by ? 2 · 0⤊ 0⤋
something contrary to you
2006-12-19 18:43:46 · answer #5 · answered by Anonymous · 0⤊ 0⤋