It is normal that there have been no updates yet. For your spouse, because she has never completed an Immigration Medical Exam before, IRCC will most likely send her a medical request later in the processing stage.
You can choose to do an upfront medical exam now, and there would generally be no problem with doing it early. The panel physician will upload the results directly to IRCC’s system, and when the officer reviews your file, those results will already be available. However, in practice this usually does not make the process faster, because IRCC typically reviews eligibility and background stages first and then sends the medical request when they are ready to assess admissibility. If the medical is done early, the officer may still wait until that stage to review it.Because of IRCC’s newer policy allowing previous immigration medical results to be reused for up to five years for eligible low-risk applicants, expiration is less of a concern than it used to be. Even so, since your spouse has never done an IME, IRCC will likely still issue an official medical instruction. Doing it now is optional and generally safe, but most applicants simply wait for the request, since it does not usually speed up the processing timeline.
