Please tell me, could a small fracture in low back heal on it's own?

Yes, most of the ---: Fractures heal eventually, by themselves. We all want them heal without complications and in shortest period of time.

Take it easy: Most spine fractures will heal within 3 months with bracing, limiting strenuous activity and close follow-up with a spine specialist. Some fractures require surgical stabilization and kyphoplasty is an option for elderly patients with compression fractures. Check out spine-health.Com.