problem

我胃疼，这真是个问题。

I have a stomach ache, it's a real ___problem.

我的手机出了点问题，充不进电。

There's a ___problem with my phone—it won't charge.

我牙齿有问题，需要去看牙医。

I have a ___problem with my teeth, I need to see a dentist.