Question: If a woman goes for a checkup to the doctor, and she does an internal,i.e put her finger in or any other object or medicine, will her fast break?
Answer: If the doctor inserted her finger. The first time she inserted it, it was moist then qadha will be necessary. If the first time she inserted her finger it was dry, then the second time she does it, it will break the fast and qadhaa will be necessary, not kaffarah.
By inserting a stick or medicine, the fast will break and qadha will be necessary not kaffarah.