Does teratoma affect fetal development?

Written by Du Rui Xia

Obstetrics

Updated on February 02, 2025

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Teratomas are not normal fetuses; they are a type of tumor originating from germ cells in the ovaries. Pregnancy will not affect the normal development of the baby, and regular prenatal check-ups at the hospital are advisable. If it is possible to surgically remove the teratoma before trying to conceive, it is best to do so. Teratomas can be benign or malignant. Benign teratomas contain various components, including skin, hair, teeth, and bones. Malignant teratomas are poorly differentiated and more prone to malignant transformations and metastasis.

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Written by Hou Jie

Obstetrics and Gynecology

1min 5sec

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Teratoma Benign and Malignant Differences

Teratoma refers to a common type of germ cell tumor, which can be classified into mature teratomas and immature teratomas. Mature teratomas are benign tumors, accounting for 10%-20% of ovarian tumors. They can occur at any age but are more common between the ages of 20 and 40. Most are unilateral, of moderate size, and usually have a single compartment filled with sebum and hair; sometimes teeth and bone can also be found. Immature teratomas, on the other hand, are malignant tumors, making up 1%-3% of ovarian teratomas. These are more frequent in younger patients, with an average age of 11 to 19 years. The ovaries are predominantly solid but may include cystic areas, primarily consisting of primitive neural tissue. The malignancy level of the ovary depends on the proportion of immature tissue, the degree of differentiation, and the content of neuroepithelial tissue.

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Written by Yan Qiao

Obstetrics and Gynecology

46sec

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Does a teratoma that is too large affect fertility?

Ovarian teratoma is a type of commonly seen benign ovarian tumor. Even though it is benign, like in the case of teratomas, it can still potentially affect a woman's fertility. The critical factors are the location and the size of the ovarian tumor. If the tumor originates from the center of the ovary, it is likely to cause significant damage to the ovarian tissue. Additionally, if the tumor is large, it can also cause substantial damage to the normal tissue. These factors can impact a woman’s fertility, leading to a decline or even complete loss of reproductive function. Whether fertility is retained depends on the function of the ovary on the other side.

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Written by Liu Jian Wei

Obstetrics and Gynecology

46sec

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Can one have sexual intercourse with a teratoma?

Teratoma is a type of ovarian cyst located within the abdominal cavity. Generally, the presence of a teratoma does not affect the patient's ability to have a normal sexual life. However, it is advised not to engage in overly vigorous sexual activity, as intense sexual activity can cause torsion of the ovarian cyst in the abdominal cavity. Once torsion of the ovarian teratoma occurs, it can lead to torsion of both the fallopian tube and the ovary on the affected side. Following torsion, the twisted fallopian tube and ovary lack blood supply, which can further lead to ischemia and necrosis. In such cases, it becomes necessary to surgically remove the affected fallopian tube and ovary.

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Written by Wang Jing Hua

Obstetrics and Gynecology

38sec

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Is teratoma serious?

Teratomas are one of the most common ovarian tumors in women and are generally benign and not severe. If a teratoma is discovered, regular examinations are necessary. These examinations should assess the endocrine status, as some teratomas have endocrine functions, and also consider the growth rate and specific size of the teratoma. Based on the examination results, it will be decided whether regular follow-up examinations are sufficient or if immediate surgical treatment is needed. Therefore, examinations are very important.

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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.