If ultrasound examination reveals a solid mass in the adnexa, it does not necessarily mean cancer. Solid masses in the adnexa are classified as benign and malignant. If a solid mass has a regular shape and clear edges, most of them are benign, such as ovarian cysts, teratomas and tubal cysts, which are basically benign masses. Malignant masses do ultrasound, there will be unclear boundaries, irregular morphology and so on, ultrasound found in the annex with a solid mass, there is no need to worry too much, most of the ultrasound examination can basically determine the nature of the tumor. If it is an ovarian cyst or teratoma, it is basically a benign tumor, as long as there are no other clinical symptoms, and the tumor is relatively small and does not exceed 5cm, it does not require surgical treatment. If abdominal pain occurs and the tumor is larger than 5cm, you can cooperate with your doctor for surgical treatment.