The ovaries must go through two transitions in a woman’s life: puberty and menopause. Adolescence is the time when the ovarian structure is mature, while menopause is the time when the ovarian function turns into decline. During these two periods, the ovaries are susceptible to stimulation by various factors inside and outside the body, and ovarian tumors can occur, especially during the vigorous puberty, when cell proliferation is rapid and tumors can easily occur due to stimulation. Ovaries are not only an organ for tumors, but also have many kinds of tumors. In general, ovarian tumors in adolescent women have the following characteristics: 1. Benign ovarian tumors are the majority, but the proportion of malignant tumors is also higher than other age groups, and the tumors are mostly substantial and grow rapidly. 2. 2. Tumors are easy to be found because of the slim figure of young girls and the small space in the abdominal cavity, so when ovarian tumors grow up, they can easily compress other organs and cause corresponding symptoms. For example, compression of rectum will cause constipation, compression of bladder will cause poor urination and so on. Therefore, mothers should pay attention to observe the waist circumference and abdominal circumference of their girls and seek medical attention in time when abnormalities are found. 3.Uterine bleeding and irregular menstruation and other abnormal symptoms appear. 4.Some of the ovarian tumors in young girls have secretory function. Therefore, patients may have early development or accelerated sexual maturity. 5. The effect of surgical removal of benign tumor in adolescence is very good, not only to prevent malignant transformation, but also to prevent complications such as torsion. If the tumor is malignant, it should be excised early and treated with radiation therapy or anti-cancer drugs.