why do we get an itch we can't scratch
2006-08-28 05:43:09 · 7 answers · asked by tildypops 3 in Health ➔ General Health Care ➔ Other - General Health Care
An itch (Latin: pruritus) is a sensation felt on an area of skin that causes a person or animal to desire to scratch that area. It is a distressing symptom that can cause discomfort. Scratching may cause breaks in the skin that may result in infection. Itching can be related to anything from dry skin to undiagnosed cancer.
A chemical called histamine is responsible for the itching sensation which is a molecule released by mast cells in the skin.
An itch from cutaneous (skin-related) stimuli, such as movement of small hairs on the body, is transmitted along the same pathway as pain. An itch caused by histamine is transmitted to the brain by a different neural pathway, described in 2001 by Andrew et al. As with pain, a histamine-induced itch travels via the spinothalamic tract, but in fibres specific for itch.
hope this answers your question :)
2006-08-28 05:54:39 · answer #1 · answered by celtic_princess77 4 · 0⤊ 0⤋
i'm usually quite capable of scratching myself where i itch.
2006-08-28 12:46:12 · answer #2 · answered by banzai 4 · 0⤊ 0⤋
mainly due to sweat glands why we itch , but always seems to be where or when we not want it itch it happens, that why they made back scratters to reach some itches
2006-08-28 12:48:01 · answer #3 · answered by chhihuahua 1 · 0⤊ 0⤋
Its all to do with the sweat glands why we itch
2006-08-28 12:50:04 · answer #4 · answered by Sexy Red 4 · 0⤊ 0⤋
Beats me, I can always scratch mine
2006-08-28 12:45:58 · answer #5 · answered by Mr looking for answers 2 · 0⤊ 0⤋
I dont know why but it sucks!
2006-08-28 12:49:29 · answer #6 · answered by Black_ash 3 · 0⤊ 0⤋
ok then
2006-08-28 12:49:28 · answer #7 · answered by thesunnshynne 5 · 0⤊ 0⤋