The size of the ovaries varies with age. At sexual maturity, the ovaries are the largest in size, with a normal size of about 25-50 mm in length, 15-30 mm in width, and 6-15 mm in thickness, and both ovaries are basically about the same size, weighing about 5-6 g. In young girls, the ovaries are smaller, with a smooth surface, because they have not yet ovulated. The ovaries are smaller in the juvenile stage and have a smooth surface because they have not yet ovulated. During sexual maturity, the ovaries are the largest in size, measuring about 25-50mm in length, 15-30mm in width, and 6-15mm in thickness. as women enter perimenopause, the ovaries gradually shrink, and by the end of the menopause, the ovaries may be atrophied to a size of about 15mmX7.5mmX5mm. The size of the ovaries is also related to the lesions of the ovaries. When there are cysts or tumors in the ovaries, the size of the ovaries will increase, and its size is closely related to the size of the cysts or tumors. The functions of the ovaries are mainly ovulation and production of sex hormones. Normally, the ovaries discharge one mature egg per month, either alternately from both ovaries or continuously from one ovary. The hormones produced by the ovaries are estrogen, progesterone and a small amount of androgen. If ultrasound examination suggests that the ovaries are enlarged, it is important to consult the doctor and do relevant auxiliary tests to clarify the cause of the disease.