# My knee keeps throbbing

**URL:** <https://boards.straightdope.com/t/my-knee-keeps-throbbing/235456>\
**Category:** Factual Questions\
**Created:** [March 20, 2004, 9:01pm UTC](https://boards.straightdope.com/t/my-knee-keeps-throbbing/235456 "2004-03-20T21:01:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ThatGuy](https://avatars.discourse-cdn.com/v4/letter/t/e5b9ba/32.png) [@ThatGuy](https://boards.straightdope.com/u/ThatGuy)\
**Post date:** [March 20, 2004, 9:01pm UTC](https://boards.straightdope.com/t/my-knee-keeps-throbbing/235456/1 "2004-03-20T21:01:06Z")

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Periodically throughout the day the left side of my right knee will painlesly pulsate, it sometimes gets to a rate of about 2 per minute. I don’t suspect a serious medical problem or anything…in fact it feel like may it is a pumping vein or something of the sort…the problem is i find involuntary movement very “icky”. I have always hated having my reflexes tested (hitting spot below the knee) and even get scared and quesy when i hit the spot on accident. This occurence is recent, last night however it kept me up a good deal of the night…anyone know what it might be or how to stop it? I’ll answer any more specfic questions about it if any are posed…thanks

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**Author:** ![Ludicrous](https://avatars.discourse-cdn.com/v4/letter/l/82dd89/32.png) [@Ludicrous](https://boards.straightdope.com/u/Ludicrous)\
**Post date:** [March 21, 2004, 12:16am UTC](https://boards.straightdope.com/t/my-knee-keeps-throbbing/235456/2 "2004-03-21T00:16:43Z")

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I actually experience something very similar to you. It’s not something that requires a visit to the doctor (been experiencing it for years with no true problems), but i’d like to hear an explanation nonetheless.