[RK]

The study claims squatting is better than sitting for hemorrhoids, but what is the effect of squatting on the knees?

[eru]

Deep squatting is good for the knees.

I do it as a weight lifting exercise three times a week. Please squat below parallel (i.e. hip below knees, the bone in your leg should be below parallel to the ground). High squatting above parallel can wreck your knees.