I remember that I have always, even back in primary school, avoided anything similar to squats as my knees would do an audible 'click' every time I got low enough. It's not painful, or even unpleasant, it's just - annoying, and a bit scary.
I've picked up regular exercises a bit over a year ago and I have been running at least once a week (3 times per week since January) for half a year. I wanted to add squats to my training schedule but I'm a bit worried about the clicking sound - although I noticed that, since I started running, it's much quieter, and does not happen always (it used to click on every deeper move).
Should I worry about it, or just work my way up gradually and it will pass?