<unk>  is pain caused by damage or disease affecting the somatosensory system.<unk>  may be associated with abnormal sensations called dysesthesia or pain from normally non-painful stimuli (allodynia). It may have continuous and/or episodic (paroxysmal) components. The latter resemble stabbings or electric shocks. Common qualities include burning or coldness, "pins and needles" sensations, numbness and itching. Up to 7%-8% of the European population is affected, and in 5% of persons it may be severe.<unk>  may result from disorders of the peripheral nervous system or the central nervous system (brain and spinal cord). Thus,<unk>  may be divided into peripheral<unk> , central<unk> , or mixed (peripheral and central)<unk> .<unk>  may occur in isolation or in combination with other forms of pain. Medical treatments focus on identifying the underlying cause and relieving pain. In cases of neuropathy, the pain may progress to insensitivity.
Neuropathic pain
Cancer
Phantom pain
Psychogenic pain
Nociplastic pain
Hyperalgesia
Allodynia
Chromesthesia