* Good grades in GCSE Maths and GCSE Science (Biology, Chemistry, and Physics are typically required, sometimes combined science is accepted but individual sciences are preferred). A's and B's are usually expected, and sometimes even higher grades are preferred.
While not always strictly *required*, having good GCSE grades in English Language and English Literature is also highly recommended, as strong communication skills are essential for surgeons.
It's crucial to remember that GCSEs are only the first step. You'll then need A-levels (or equivalent qualifications) in relevant subjects, followed by a highly competitive medical degree, and then extensive surgical training.