No, you do not need surgery, unless you are having pain as a result of the inner labia, or labia minora, being particularly long. Some women have short labia minora, and some have longer labia minora.
Abnormal vaginal bleeding is a flow of blood from the vagina that occurs either at the wrong time during the month or in inappropriate amounts. In order to determine whether bleeding is abnormal, and its cause, the doctor must consider three questions: Are you pregnant? What is the pattern of your bleeding? Are you ovulating regularly or not.