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There are no particular causes of hyperactive gag reflex as such. It's just an aversion to certain textures of food that induces a severe urge to gag. Certain activities that need you to open your mouth for a long time or putting something in the mouth can also result in a gag. Basically, anything that brushes against the soft palate and stimulates it, results in a gag. Adults may experience it while getting a dental job done, which requires the person to keep his mouth open for a very long time. Moreover, during a dental job, certain instruments or solutions stimulate the soft palate and aggravate the feeling to gag. Hope this has helped you.

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12y ago
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9y ago

Touching the roof of the mouth, back of the tongue, tonsils or throat causes gagging. Gagging prevents you from swallowing something that is not intended to be swallowed.

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Q: What are the causes of an overactive gag reflex?
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