Whether an ovarian cyst is serious or not mainly depends on the nature of the cyst, if it is some physiological corpus luteum cyst or follicular cyst, it is not very serious and such cysts will disappear on their own. However, ovarian cysts can also be malignant, and malignant ovarian cysts may induce malignant tumors, such as ovarian cancer, and in serious cases may be life-threatening, requiring surgery if necessary, and chemotherapy after surgery. When cysts appear in the ovaries, it is important to go to the hospital for pathological examination to clarify whether the lesions are benign or malignant. In addition, the specific cause of the ovarian cyst should be clearly identified, so that a treatment plan can be formulated after the cause is clear. If a woman is in her childbearing years, ovarian cysts may affect the conception process and should be suspended for active treatment. Surgery is recommended for ovarian cysts over five centimeters. The causes of ovarian cysts are complex and may be due to excessive stress or poor lifestyle habits. It is important to maintain good habits in daily life and not to be under too much mental stress.