acatamathesia
n. uncountablen. a medical condition where a person cannot feel pain in a specific part of their body. It is the opposite of hypersensitivity.
n. a condition characterized by the absence of the sense of pain in a particular area of the body. Often used in clinical contexts to describe a localized loss of nociception.
The patient was diagnosed with acatamathesia in his left arm.
Doctors observed that the patient showed no reaction to heat or pinpricks on the affected limb, confirming a diagnosis of acatamathesia.
While rare, acatamathesia can occur as a result of specific neurological damage, leading to a dangerous lack of awareness regarding physical injury in the affected region.
Last updated June 22, 2026