Mixed mass in the right adnexal region of women may be caused by ovarian tumor, endometriosis, tubal pregnancy and so on. 1. Ovarian tumor: if there is a mixed mass in the right adnexal area of a woman, it may be ovarian tumor on the right side, and if the ovarian tumor is large, there may be complications such as torsion of the tip, rupture and infection. 2. Endometriosis: mixed masses in the right adnexal area of women may also be endometriosis of the ovary. The ectopic endometrium undergoes cyclic rupture and bleeding, which leads to the adhesion of the surrounding tissues, and the patient may feel the mixed masses in the right adnexal area. 3. Tubal pregnancy: the presence of mixed masses in the right adnexal area of women may also be tubal pregnancy, fertilized eggs implanted in the fallopian tube and growth, may appear mixed masses in the right adnexal area. There may be other causes of mixed masses in the right adnexal area, it is recommended to go to the hospital in a timely manner to improve the examination, to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.