Sometimes PhD students suffer from illness which seriously impairs their ability to work. If this happens, the Supervisor should be informed without delay.
Sometimes a student may need to intermit studies for a term, or longer, and go out of residence. This is a routine procedure: you should apply on a form available from your CamSIS Self-Service.
A student may also intermit for non-medical reasons, such as to go on maternity leave, or to take up an internship relevant to their research.
In either case, the main funding body for the PhD must be informed as well as the Graduate Administrator; the sponsor will normally intermit fee and maintenance payments for the duration of the award and then add the duration intermitted to the end of the original funding award period.