I'm having treatment for my back problem.

我正接受背部疾患的治疗。

《牛津词典》

Caution: Anyone with a back problem shouldn't do this exercise.

注意：背部有问题的人不宜做此练习。

youdao

If you have a back problem, you should pick a light exercise.

如果你的背部有问题，就应该挑一些运动量小的锻炼方式。

youdao

Now the problem was how to get the astronauts back to Earth as quickly and safely as possible.

VOA: special.2009.07.22

This seems like a completely Christian answer to Zooey's problem, and we're back on the horns of that dilemma.

这似乎是左伊问题的基督教的回答，我们又回到了两难的境地了。

耶鲁公开课 - 1945年后的美国小说课程节选

And the problem is the same sort of dynamic plays itself out even in the scientific debate back and forth.

问题是，心理动力在科学辩论中,也是以相同的方式在进行循环辩证。

耶鲁公开课 - 心理学导论课程节选

Starting receiver Stevie Johnson has yet to practice this spring because of a lingering back problem.

WSJ: Bills sign 2nd-round draft pick, LB Alonso

Paceman Steve Harmison is currently recovering from a back problem, which followed an earlier shin injury.

BBC: Andrew Flintoff and David Graveney

The Gloucester tight-head will undergo surgery on a back problem this week and will be unavailable for selection.

BBC: Vickery to miss summer tour