<Tr> <Th> ICD - 10 </Th> <Td> G44. 8021 (ICD - 10NA) </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> A cold - stimulus headache, also known as brain freeze, ice - cream headache, trigeminal headache or its given scientific name sphenopalatine ganglioneuralgia (meaning "pain of the sphenopalatine ganglion"), is a form of brief pain or headache commonly associated with consumption (particularly quick consumption) of cold beverages or foods such as ice cream and ice pops . It is caused by having something cold touch the roof of the mouth, and is believed to result from a nerve response causing rapid constriction and swelling of blood vessels or a "referring" of pain from the roof of the mouth to the head . The rate of intake for cold foods has been studied as a contributing factor . A cold - stimulus headache is distinct from dentin hypersensitivity, a type of pain that can occur under similar circumstances . </P> <P> Cats and other animals have been observed experiencing a similar reaction when presented with a similar stimulus . </P>

Why do you get a headache after eating ice cream
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