call them to discuss anything worrying you about your diabetes.
you may need to spend some time in hospital during your cancer treatment. this will depend on the type of cancer you have and the treatment that is planned. you may have to stay in hospital for only a few hours. but you may have to stay overnight, for a few days or sometimes longer.
you will usually know when you are going into hospital. this means you can plan ahead to make sure that you have everything you need to manage your diabetes.
your blood sugar levels may be higher or lower than usual while you are in hospital. this can happen 