I was hospitalized for 2 days due to my abdominal pain. doctors told me i had a complex 7cm ovarian cysts. will it go away, or do i need surgery?

Depends...: Ovarian cysts are best handled by an ob/gyn. The symptoms can be improved sometimes with over-the-counter medications and prescription birth control pills. They are typically more troublesome about 2 weeks after your period is finished (when ovulating). They can cause discomfort and potentially life-threatening bleeding if they rupture. They don't typically resolve spontaneously.

Depends: Most of the time will go away either burst or retract. Sometimes can persist for a while.

Discuss: you need to discuss with your gyn; you could need surgery in the future

Prompt surgery!: With utmost respect to prior responses, complex ovarian cysts larger than 6-8 cm. must be considered for prompt surgery according to standard of care by the American College of OB/Gyn. Complex cysts (vs. simple ) have greater risk for malignancy (cancer), and cysts larger than about 6 cm pose a significant risk of torsion (twisting ) or rupture. There are exceptions but few, see an OBG promptly.