The little junior sister's long hair was not like that of other female medical students, who often let their hair flow as if they were strutting on a fashion runway in the hospital. You should know that flowing locks are also one of the reasons why clinical surgery dislikes female doctors.
Unlike internal medicine, surgery places greater emphasis on sterile procedures. In sterile operations, hair must be tucked into the surgical cap completely, should you enter the operating room. For everyday surgical procedures, sterility is still stressed, but wearing a surgical cap is optional. If you have hair that sheds and a few strands fall into a wound, that's big trouble.
What is surgery? The likelihood of dealing with bodily wounds in surgery is much higher than in internal medicine, which focuses more on prescribing medications.