Don’t know who thumbed down the first two answers because they are basically correct. If you are studying here for more than 6 months then you are entitled to NHS treatment. However if you are here for less than 6 months you will only be entitled to emergency treatment and would need to take out private insurance. This link will give you all the details…

If you are legally residing in any part of the UK (including Scotland), you are covered by the provisions of the National Health Service (NHS).

NHS services are funded from general taxation, and free at the point of use. Visiting a GP is free. Emergency hospital treatment is free. In-patient treatment and surgery is free. Prescriptions are chargeable, but are free for some people (but they are free in Scotland and Wales), opthalmic services are free for some (children etc) but subsidised for many. Only elective cosmetic procedures need be funded privately.

When you go home, tell them how magnificent socialised health care is, and how it leaves nobody behind, treating rich and poor the same.

You don’t need it. The NHS will treat you for free, if you are unlucky enough to require medical attention.