Q. Is there a way to check for a lumbar disc at home?

There are four checks you can do at home. None of them is a diagnosis; they are clues for deciding whether to be seen.

1. Compare leg length — lying flat on your back, compare the length of both legs. If one is shorter, the pelvis may be rotated or the spine unstable. Lying crooked changes the result, so check only while lying straight.
2. Big toe strength — in the same position, lift both big toes and push. If one side cannot push, that can be a sign the nerve on that side is compressed.
3. Walk on tiptoe — walk on your toes as a dancer would. Pain or wobbling means it is worth checking.
4. Walk on your heels — walk on heels alone. Difficulty or pain means the same.

If any one of the four applies, we would have it examined. Equally, if all four are normal but your back keeps hurting, that also needs checking.