A cystic structure on the left ovary primarily represents the current presence of ovarian cysts. Ovarian cysts are generally related to individual physical condition, diet and environment, and the size and number of ovaries may vary for each individual. However, as the condition progresses, the structure and normal physiological function of the ovaries will be affected to a certain extent, which can cause adverse consequences such as infertility in severe cases. Therefore, it is important to review the uterine adnexal ultrasound, female hormones and female tumor markers regularly, and perform cyst aspiration and cystectomy if necessary. If ovarian cancer is not ruled out, ultrasound-guided aspiration and pathological examination can be performed to clarify the specific pathological type. Normally, you should pay attention to more rest, develop good living habits and not to eat spicy and stimulating food.