It is strongly suggested that you have a minimum GPA of 3.0 to gain acceptance to any medical school.
However, this is a minimum value, and most applicants should have a mid-3.0 range GPA to be competitive.
Many medical schools organize their training into two parts: pre-clinical and clinical.
In a traditional four-year curriculum, the pre-clinical phase includes two years of science training when you learn about basic medical concepts, the structure and functions of the body, diseases, diagnoses, and treatment concepts.
Generally speaking, a typical medical school program can be completed within approximately four years.
However, the timing will depend on the specific institution, if a student takes a leave of absence or elects to take additional courses, or if he or she pursues additional training.
The content you will be learning isn't necessarily hard.
But rather, the sheer volume of information you're expected to memorize is what's difficult.
Imagine going through a semester worth of material from undergrad, in just one week.
That's essentially the pace you'll be expected to move at in med school.