With reference to your query, please be informed as follows:
- After an internal examination by a gynecologist, there is no need for a farḍ ghusl.
- As a rule, ghusl becomes fard in a limited set of circumstances. These are:
- After sexual intercourse
- After the emission of seminal fluid
- After menstruation
- After childbirth, if there is no post-natal bleeding
- After post-natal-bleeding
- After death
- Anything other than these six reasons will not cause ghusl to become obligatory.
واﷲ تعالى أعلم
And Allah knows best.
MT Karaan