This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetrics, Subject name: Gynaecology & Obstetrics
In the recovery room, 1 hour after an outlet forceps delivery, a patient is found to have an 8 x 5 cm expanding, bluish & tense, painful right labia majora. The most appropriate management of this patient includes: 
Select and explain. 
A. Vaginal packing, B. Vaginal exploration under GA, C. Exploratory laparotomy and Internal Illiac aery Ligation, D. Observation, Cold compress.
B: Vaginal exploration under GA
Answer: B: Vaginal exploration under GA 
Explanation: The above given history is suggestive of vulvar hematoma. Most cases can be managed conservatively, at least initially, but if the pain does not disappear and if there is suspicion of an expanding hematoma, it will be necessary to examine the areas with the patient under anesthesia and drainage in order to reduce the pain, accelerate the recovery and prevent secondary infection and necrosis