Licence holders shall, without undue delay, seek aero-medical advice when they:
(1) have undergone a surgical operation or invasive procedure;
(2) have commenced the regular use of any medication;
(3) have suffered any significant personal injury involving incapacity to function as a member of the flight crew;
(4) have been suffering from any significant illness involving incapacity to function as a member of the flight crew;
(5) are pregnant;
(6) have been admitted to hospital or medical clinic;
(7) first require correcting lenses.
Annex IV PART-MED- MED.A.020 Decrease in medical fitness