What GCSC qualififications do you need to become a doctor?

There's no such thing as "GCSC qualifications" for becoming a doctor. GCSC doesn't appear to be a recognized medical or educational body. The requirements to become a doctor vary significantly depending on the country. Generally, it involves:

* Secondary Education: Completing high school with strong grades, particularly in science subjects.

* Undergraduate Education: Obtaining a bachelor's degree (often in a science-related field like biology, chemistry, or pre-med). The specific requirements vary by country and medical school.

* Medical School: Completing a four-year (or longer) medical degree (MD or equivalent). This involves rigorous coursework, clinical rotations, and examinations.

* Residency/Internship: Post-graduate training, typically lasting several years, specializing in a particular area of medicine.

* Licensing: Passing licensing examinations to practice medicine in the specific country or region.

To find the specific requirements, you need to research the medical licensing and educational pathways in the country where you intend to practice medicine.