Female teratomas are cystic-solid tumors located on the ovaries. When they are small in size, they generally do not cause pain. However, as they grow larger, due to gravitational pull, they stretch the surrounding ligaments, causing women to experience hidden pain on one side of the lower abdomen. This pain is bearable and only intensifies after vigorous activities or intercourse.

Some women may experience increased pain if they have a pelvic infection or during menstruation. Because teratomas are uneven in texture, if they are not adherent to surrounding structures and are relatively mobile, and their stalk is thinner, they might twist under certain circumstances, such as rolling over, spinning hula hoops, or during pregnancy, when the uterus grows and changes the position of the teratoma, leading to acute lower abdominal pain from torsion of the teratoma’s stalk.

Therefore, when a woman experiences abdominal pain from a teratoma, it is essential to conduct a gynecological examination and pelvic ultrasound to understand the specific cause of the pain.