Teratomas are a type of ovarian cyst. For patients with teratomas, it is advised to avoid vigorous exercise as much as possible. This is because vigorous activity may lead to the torsion of the ovarian cyst, which can then cause ischemic necrosis of the fallopian tube and ovary on one side, and in such cases, it may be necessary to remove the affected fallopian tube and ovary. Additionally, it is recommended that patients who develop a teratoma should immediately visit the gynecology and obstetrics department of a local hospital to undergo surgical removal of the teratoma.