What to do if i hurt my lower back/spine while doing squats?

Tailbone pain: Squatting can lead to muscle sprains, small tears, facet capsule tearing, or even a disc herniation with an annular tear. Overdoing it is typically not smart. Try lots of walking, anti-inflammatories, and cold packs three times a day alternated with heat. Fractures are very rare, although something can snap, due to overload. If pain does not get better, check it out with a doctor in a week.

Low Back Pain: Squats can put a great deal of pressure on your discs if you do not maintain proper form. Any loss of lordosis(sway back) can increase the pressure on the forward portion of the disc causing it to bulge back and potentially be injured. Associated muscle spasm and pain can occur. Good news is most people recover with activity and proper exercise. If you return to squats make sure form is perfect.