They requested for my medicals I didn't do upfront

Hello everyone,
Please what could be the cause of delay, after passing my medicals (not an upfront) for Canadian Student visa since December 2022. Till today there is not further information from the IRCC. I was told that few people that had their medicals after mine have already submitted their passport and and their visas has been granted. Please kindly share your experience and advice

Please what do mean by eligibility. I didn't do any of the processing upfront. It was been required. Both the biometrics and medicals

Thank you Olarewaju for your response.
The medicals was scheduled and it is a a self sponsored application.

Good evening,
Please I have been on the processing of my Canadian Student visa since last year. I did my biometrics on September 27, 2022 and my medicals on 8th of December, 2022 of which the result has been uploaded that I passed. I have been expecting to hear from IRCC for my passport to be submitted for visa. I have to get across to my school to defer my admission because I was to resume on 6 February, 2023. Please what could have been the reason for the delay? Has anyone been in this type of situation before to throw more light. Thanks in anticipation.