Women with small (less than 50 mm diameter) simple ovarian cysts generally do not require follow-up
as these cysts are very likely to be physiological and almost always resolve within 3 menstrual cycles.

A repeat assessment with CA 125 and TVS /TAS should be arranged in  4-6 months for cysts fulfilling ALL of the following criteria:
asymptomatic, simple cyst, < 5 cm, unilocular, unilateral. 

If on follow up , the cyst resolves, the patient can be discharged. If the cyst remains unchanged, then repeat assessment should be done in 4-6 months.