Ovarian cyst


  • Most common are functional or follicular cysts
  • Less common include PCOS, cystadenomas, and dermoid cysts
  • Cysts are generally >1cm in size
  • Cysts are at risk of torsion when >4cm
  • Cysts <2cm are virtually risk free from torsion

Clinical Features

  • Most tend to be asymptomatic
  • Can cause:
    • Dull pelvic pain or fullness
    • Dyspaneuria
    • Pressure on the bladder
  • They can be significantly painful if ruptured
  • If there is bleeding into the cyst and it ruptures, it can be life threatening

Differential Diagnosis


RLQ Pain


LLQ Pain


Transvaginal ultrasound showing ovarian cyst[1]
  • Bimanual exam
    • Adenexal mass
    • Adenexal tenderness
  • Ultrasound
    • Absence of cyst may suggest rupture


  • NSAIDs
  • Oral contraceptives
    • No benefit has been found though Gyn may suggest them[2]


  • Home
  • Follow up with OBGyn

See Also

External Links


  1. http://www.thepocusatlas.com/obgyn/
  2. Cochrane Database Syst Rev 2011. Sep 7;(9):CD006134.