1, medical care: medical care is a common colloquial word, which can be interpreted as health care and health services; Medical care.
2. Medical care: Medical care is a medical vocabulary. It means medical treatment, health care.
Second, the emphasis is different.
1, health care: health care focuses on health care.
2. Medical care: medical care is mainly based on medical care.
Third, different habits.
There may be customary differences between Britain and America. For example, wiki is an American website, which uses "healthcare" with spaces instead of health care as the main item, and the following sub-items are basically health care, but the item "Healthcare in the UK" is used without spaces. Similarly, VOA, CNN, NYtimes and other websites basically use spaces, while BBC websites use spaces without spaces.