First of all, it is difficult to change majors. . You have to work very, very hard to meet the requirements
The requirements should reach 10% before the major. . Then there must be no bad disciplinary record. . The body should meet the requirements of the transferred major (color blindness, color weakness, etc.). I can't seem to learn medicine)
I might say something that is not specific. .
But in short, the word "diligence"
Good luck. .