My ultra sound report. Endometrium 11 mm. And left ovary is enlarged wid thin walled rounded eyst of size 34mm. S/o functional eyst. What does it mean?

Ovarian cyst. It is normal for a small cyst to develop on the ovaries from time to time. Ovarian cysts are quite common in women during their reproductive years and may be a single cyst or many cysts. Most cysts are benign and only require monitoring. Most are cysts which develops from tissue that changes in the normal process of ovulation. They usually disappear within 6-8 weeks.