What is the nature of the cystic mass in the right?

Patient's question:

Doctor:
Hello!
What is the nature of the cystic mass in the right ovary and why does it occur? If it exists, what should I do?

Doctor's answer:

Okay, here is the translation following your instructions:
Blood tests can check tumor markers. If the tumor markers are also normal and it's just a simple cyst, it's generally more likely to be benign. If it's a complex cyst (cystic-solid) or a solid mass, there's a possibility of malignancy, and surgery is generally required.