A 24-year-old female presents with left flank pain radiating to the back, abnormal vaginal bleeding, and dyspareunia. What is the most likely diagnosis?

Get ready for the Paramedic Readiness Exam 5. Study with multiple-choice questions, detailed explanations, and effective strategies. Enhance your exam preparedness today!

Unilateral pelvic or flank pain in a reproductive-age woman, with some vaginal bleeding and dyspareunia, most often points to an ovarian cyst. Functional cysts (like a follicular or corpus luteum cyst) can cause sharp or dull flank/pelvic pain as the ovary stretches, and they can produce irregular spotting or mild vaginal bleeding. Pain during intercourse can occur due to irritation or enlargement of the adnexal structures.

Kidney stones typically cause sudden, severe flank pain that may radiate to the groin and usually includes hematuria, with little to no vaginal bleeding. Pelvic inflammatory disease classically presents with lower abdominal pain plus fever, cervical motion tenderness, and discharge. Ectopic pregnancy is a critical possibility that would usually be assessed with a pregnancy test and often presents with adnexal pain and vaginal bleeding, but the scenario lacks the hallmark pregnancy context and acute rupture signs.

Thus the combination here best fits an ovarian cyst. Diagnostic steps would include pregnancy testing and pelvic ultrasound to confirm the ovarian origin and assess for complications.