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trichodynia

n. (context medicine English) A painful sensation on the scalp, often with an underlying psychosomatic cause such as stress.

Wikipedia
Trichodynia

Trichodynia is a condition where the patient experiences a painful sensation on their scalp. The pain sometimes is described as burning. Often there is an underlying psychosomatic cause, such as stress, depression or anxiety.

Only a few studies have been conducted on this condition. A theory behind the condition is that nerves innervating scalp hair follicles send pain messages back to the brain when the follicle no longer has a hair in it, in a similar way to phantom limb pain. Another theory is that people who have this condition (sometimes called "ponytail syndrome") have super-sensitive nerves in their scalp.

A possible treatment is to halt hair loss in the patient, however it is important to understand and address any underlying psychologic comorbity.