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The conditions described here are separate from the HSAN group of disorders, which have more specific signs and cause. Because feeling physical pain is vital for survival, CIP is an extremely dangerous condition. [1] It is common for people with the condition to die in childhood due to injuries or illnesses going unnoticed.
Since people with this condition are unable to sweat, they are unable to properly regulate their body temperature. [1] Those affected are unable to feel pain and temperature. [2] [3] The absence of pain experienced by people with CIPA puts them at high risk for accidental self-injury. Corneal ulceration occurs due to lack of protective impulses ...
Allodynia is a condition in which pain is caused by a stimulus that does not normally elicit pain. [1] For example, sunburn can cause temporary allodynia, so that usually painless stimuli, such as wearing clothing or running cold or warm water over it, can be very painful.
In the case of hypoalgesia, a decreased response to pain would be very beneficial in a situation where an organism's life was at stake, since feeling pain would be a hindrance rather than a help. It has been well documented that fear does cause a decrease in pain response, [ 6 ] however much like the exercise induced hypoalgesia, the exact ...
Injuries such as osseous fractures, skin burns, bruises and more serious ailments such as internal bleeding and appendicitis have a higher occurrence rate among people with the condition, since they don't have a concept of pain, they don't have a way of knowing if they have been injured or if they are suffering from pain in an area of their body that isn't the head or the stomach.
Afferent pain-receptive nerves, those that bring signals to the brain, comprise at least two kinds of fibers - a fast, relatively thick, myelinated "Aδ" fiber that carries messages quickly with intense pain, and a small, unmyelinated, slow "C" fiber that carries the longer-term throbbing and chronic pain. Large-diameter Aβ fibers are ...
' pain receptor ') is a sensory neuron that responds to damaging or potentially damaging stimuli by sending "possible threat" signals [1] [2] [3] to the spinal cord and the brain. The brain creates the sensation of pain to direct attention to the body part, so the threat can be mitigated; this process is called nociception.
Cutaneous dysesthesia is characterized by discomfort or pain from touch to the skin by normal stimuli, including clothing. The unpleasantness can range from a mild tingling to blunt, incapacitating pain. [citation needed] Scalp dysesthesia is characterized by pain or burning sensations on or under the surface of the cranial skin. Scalp ...