Many doctors believed that illness was caused by evil spirits
After reading Hippocrates and Galen's work they adapted their ideas to fit the Four Humours
Surgeons were advised to only operate when they knew the cause of the pain and how to fix it.
Doctors were warned that Allah was watching and they should never operate for personal gain
Doctors had to take exams to become doctors
Dissecting human bodies was forbidden by Islamic law
Muslims created processes such as distillation and sublimation to develop drugs