Is a teratoma the same as an ovarian cyst?

Written by Liu Jian Wei

Obstetrics and Gynecology

Updated on May 29, 2025

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Teratoma is a type of ovarian cyst, and ovarian cysts can be categorized into many types, among which teratoma is a common variant clinically. Patients who discover an ovarian teratoma are advised to immediately seek medical attention at the gynecology department of their local hospital, for assessment and evaluation of the condition. If necessary, it is generally recommended that patients undergo surgical removal of the ovarian teratoma, followed by standard pathological examination to confirm the diagnosis and nature of the teratoma.

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Written by Shen Li Wen

Obstetrics and Gynecology

1min 8sec

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How is a teratoma surgically removed?

When a woman has an ovarian teratoma, treatment should be determined based on the specific age of the woman, whether the teratoma is benign or malignant, and other factors. For example, if the woman is relatively young and has a benign teratoma and wishes to preserve her fertility, she can undergo ovarian teratoma excision surgery, which can be performed either laparoscopically or through an open surgery. During the operation, the entire teratoma can be completely separated and placed in a specimen bag to prevent contamination of the woman's pelvic cavity and avoid chemical peritonitis or granuloma. If the teratoma is malignant, then it is necessary to remove the adnexa and perform a comprehensive staging surgery. After surgery, based on the results of the pathological examination, it will be decided whether additional treatments such as radiotherapy or chemotherapy are needed.

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Written by Zhang Xiu Rong

Obstetrics and Gynecology

1min 1sec

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How to treat ovarian teratoma

The treatment for ovarian teratoma can only be addressed through surgical methods; this type of teratoma cannot be treated effectively with medication or conservative approaches. Therefore, once an ultrasound report indicates the presence of a teratoma, it is often advised to undergo surgery as soon as possible. After the surgery, the removed tissue should be examined pathologically again to check for any malignant tendencies. The majority of teratomas are benign, with only a very small number of undifferentiated ones showing malignant potential. Hence, most teratomas require surgical treatment at a hospital. There are different surgical options for treating teratomas, including open abdominal surgery and minimally invasive surgery. If conditions allow, most people will opt for laparoscopic surgery to treat ovarian teratomas.

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Written by Xu Xiao Ming

Obstetrics and Gynecology

38sec

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How is a teratoma diagnosed?

Teratomas are mostly diagnosed through symptoms, such as abdominal pain or bloating, and are identified with an ultrasound examination. Generally, these two tests are used. Additionally, blood tests may be conducted, but there are no very specific tumor markers that will be revealed. The primary means of diagnosis still rely on ultrasound and gynecological palpation. If a woman of childbearing age experiences unexplained abdominal pain, feels bloated, or notices occasional increases in abdomen size, it is recommended to undergo a gynecological ultrasound examination at a hospital.

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Written by Sun Shan Shan

Obstetrics and Gynecology

1min 7sec

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Are teratomas mostly benign?

Ovarian teratomas belong to the category of germ cell tumors, which are divided into mature teratomas and immature teratomas. Immature teratomas are malignant and account for 1%-3% of ovarian teratomas, thus they occur relatively less frequently. These are more commonly found in young patients, with an average age of 11-19 years. Mature teratomas, also known as dermoid cysts, are benign and can account for 10%-20% of ovarian tumors and 85%-97% of germ cell tumors, comprising over 95% of ovarian teratomas. These can occur at any age, but are most common between 20-40 years, often unilateral, and may contain components such as fats, hair, and sometimes teeth and bone tissues. Thus, the majority of mature teratomas are benign tumors.

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Written by Liu Jian Wei

Obstetrics and Gynecology

37sec

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Is surgery necessary for a teratoma?

Once the presence of a teratoma is considered, surgical treatment is recommended. Surgery serves two purposes: first, to remove ovarian cysts for disease treatment; and second, the removed ovarian cysts require routine postoperative pathology to confirm the diagnosis of ovarian teratoma. Without a pathological diagnosis, it cannot be definitively diagnosed as an ovarian teratoma; the diagnosis must be supported by pathological results.