What is a teratoma?
Jun 26, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Teratoma is a relatively special type of tumor containing various types of tissue and cell components. It usually originates from germ cells and can be classified as benign or malignant. Teratomas commonly occur in the sacrococcygeal region, mediastinum, retroperitoneum, ovary, and testis, and are occasionally found in the cranium, neck, and gastrointestinal tract. Mature teratomas are mostly benign and are commonly seen in the ovary and testis.
Generally, teratomas are true tumors formed by a disorganized mixture of differentiated tissues derived from the three germ layers along with undifferentiated cells. If discomfort symptoms occur, it is recommended to seek timely medical consultation at a hospital and receive standardized treatment under the guidance of a physician. Detailed analysis is as follows:
Teratomas are relatively unique tumors containing multiple types of tissue cell components, usually originating from germ cells, and can be either benign or malignant. They commonly occur in the sacrococcygeal region, mediastinum, retroperitoneum, ovary, and testis, and occasionally appear in the cranium, neck, and gastrointestinal tract. Mature teratomas are mostly benign and commonly found in the ovary and testis. These teratomas may contain various types of tissues such as hair, teeth, and bone, which are formed by abnormal differentiation of germ cells.
Immature teratomas carry a risk of potential malignant development and mainly occur in younger patients. Compared with mature teratomas, immature teratomas are less differentiated and more malignant. Common symptoms of teratomas include a mass, abdominal distension, weight loss, anemia, abdominal pain, and others.
Regular physical examinations are recommended to facilitate early diagnosis and timely treatment. Additionally, a balanced diet, appropriate exercise, and maintaining a pleasant mood are beneficial for the prevention of teratomas.
