# Mosquito bite itchiness and time of day

**URL:** <https://boards.straightdope.com/t/mosquito-bite-itchiness-and-time-of-day/182790>\
**Category:** Factual Questions\
**Created:** [June 18, 2003, 9:26pm UTC](https://boards.straightdope.com/t/mosquito-bite-itchiness-and-time-of-day/182790 "2003-06-18T21:26:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![GilaB](https://avatars.discourse-cdn.com/v4/letter/g/8e7dd6/32.png) [@GilaB](https://boards.straightdope.com/u/GilaB)\
**Post date:** [June 18, 2003, 9:26pm UTC](https://boards.straightdope.com/t/mosquito-bite-itchiness-and-time-of-day/182790/1 "2003-06-18T21:26:19Z")

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I’ve noticed that my mosquito bites tend to be particularly itchy and swollen at certain times of day, like early evening. The rest of the time they tend to be flatter and itch only slightly, if at all. Anybody have any idea why?