Your patient gestures vaguely towards their posterior hip. They've already been told it's their piriformis. Or their SIJ. Or that they need to stretch more. Nothing has worked.
The real question isn't "what could this be?" — any textbook gives you that list. The real question is "where do I go from here?" Posterior hip pain is a diagnostic minefield because conditions overlap anatomically, refer similarly, and coexist frequently. A labelling approach will fail you.
What you need is a systematic reasoning process.
This free guide takes you through six discriminating subjective questions, three structured clinical pathways (lumbar referral, deep gluteal space, tendons and intra-articular hip), red flag screening, imaging guidance, and a one-page cheat sheet for the busy clinic.