All over China too. I once chose to run back to my hotel from a bar (almost a mile) rather than use one. Then ran back again. If you do have to use one, remove all clothes first!!!
For health care, better to stay in Thailand. As with many of the comments above, the system in uk has deteriorated massively. No appointment, doctors always on strike. Waiting lists are ridiculous. If coming back you may need to consider private health care. At least in Thailand, despite the procedures making little sense, it works.