Why do my knees always crack?!


Question: When I bend down (most of the time), my knees crack. They don't hurt at all and it really isn't a huge problem, but it's annoying. I stretch on a daily basis and I've never been diagnosed with some kind of medical condition related to this.

Any explanation?


Answers: When I bend down (most of the time), my knees crack. They don't hurt at all and it really isn't a huge problem, but it's annoying. I stretch on a daily basis and I've never been diagnosed with some kind of medical condition related to this.

Any explanation?

Same thing happens to me. My right knee cracks when I flex/bend. It's been like this far about a year. I just try to stretch more oftenly. I'm not sure why it's how it is, but I wouldn't worry on it to much. I remember a couple of months ago when I was getting angry with myself because I thought I was going to have a life-damaging scar, and possibly needed surgery. I just thought of it less and I forgot about it. However, I get remembered of it whenever I hear/feel the crack. It can be a bit painful sometimes, but I would just start stretching a lot more. I think the reason could be because I used to sit on my computer chair for hours sitting like so. You should sit up straight and keep flexing, especially that knee cap that is giving you your troubles.


Edit: I noticed how my foot muscle moves out of place. It hurts painfully. A joint/muscle in my right foot also moves out of place and hurts when I try to move it back. I think it's just that my leg and foot haven't been getting much stretching from not sitting-up properly.

Maybe you need to drink more milk...

mine do it too!!!! I don't know what it is.

because they aways bend and sometimes they crack because they move againts ure hipbone and that causes a crack

your kicking too many christians and liberals. take a break and give your knees a chance to catch up. peace!

meh, it happens to me too, now even my right ankle cracks, and it hurts. >_<

nothing 2 worry about when your knees crack its the same as cracking your knuckles...its all just moving air

this happened to me all the time! except mine hurt. well, this happened to me because it turned out i have flat feet. It became sucha big problem that i had to get inserts made to my foot, and then the cracking stopped, thank God=] But if you dont think you have flat feet, they sell cheap inserts at drug stores that you can buy to put in your shoes that should work. good luck=]]

The cracking in your knees is likely very similar to what happens when people crack their knuckles. What is actually occurring is a rapid release of dissolved gases from fluid in your joint. This rapid release is due to a change in pressure in the joint when you bend your knee. It is exactly like opening a bottle of coke....lots of the dissolved CO2 comes out of solution and forms bubbles. The same type of thing is going on in your joints which causes the popping/cracking sound.

the exact reason joints crack is not yet proven but some theories are
most joints are synovial joints, meaning they have a little space, and small cavities of partial vacuum in the fluid rapidly collapse the cracking sound is made
rapid stretching of the ligaments
when cartilage is pushed together adhesions form and when they are separated, the cracking sound is heard

although it is not proven for sure that cracking joints will cause arthritis, it isn't like good for you so maybe look into it

omg, this happens to me too! Also my foot pops, it really is just like poping your knuclkes, i asked my dance teacher one day because i noticed hers did it too.

Same thing happens to me, Don't worry. It might just be your posture, but bone cracking doesnt affect you at all





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