A gynecologic ultrasound examines the uterus, fallopian tubes and ovaries, including the size of the uterus, the size of the ovaries, and the growth and development of the follicles. The gynecological ultrasound, also known as transvaginal ultrasound, is performed by placing the ultrasound probe directly into the woman’s vagina without holding her urine, to check the size of the uterus and the thickness of the endometrium, as well as the presence of intrauterine devices and endometrial polyps. It is also possible to see the thickness of the fallopian tubes, the size of the ovaries, and the growth and development of the follicles on the ovaries, so it is often possible to consider an ultrasound to monitor the growth and development of the follicles, not only to see the size of the follicles, but also to see the shape of the follicles. Therefore, for women who are preparing for pregnancy with ultrasound monitoring, they can arrange intercourse to prepare for pregnancy when the follicles are expelled, so that the chances of pregnancy are higher. It is also possible to see clearly the presence of abnormal echogenicity in the uterine body, such as fibroids, and even abnormal cysts in the ovaries, such as the common ovarian chocolate cysts or ovarian teratomas. Since gynecological ultrasound does not require holding urine, it can actually be the first choice for women who are not pregnant and who are sexually active. Unmarried or non-sexual women may not have an ultrasound