Why should you do low bar squats?

If you are someone who suffers from knee pain or have any issues with your knees, but are also looking forward to start getting stronger by doing high bar squats or low bar squats, you should definitely choose the latter, the low bar squats. Low bar squats, in contrast to high bar squats, reduce the pressure on your knees and you wouldn't probably notice that much pain. 

Also, low bar squats are great for increasing the muscle ratio in your glutes and hamstrings. 

Always ask someone with knowledge to check your form before doing your sets to reduce the risk of injuries! :)