A mass in the lower right abdomen can be seen on ultrasound in general surgery or in the case of women in gynecology. There are many reasons for a mass in the right lower abdomen, the common ones are hernia, intestinal obstruction, appendicitis, lipoma, sebaceous cysts, tumors in the intestines, and women should also consider whether they have ovarian cysts and other diseases. Hernias, intestinal obstruction, appendicitis, lipomas, sebaceous cysts, and tumors in the intestines can usually be seen in the general surgery department, so if you are thinking about a mass in the lower right abdomen, especially in symptomatic patients, for example, if there is a mass accompanied by nausea, vomiting, and other symptoms, you can go to the general surgery department. If it is a female patient, accompanied by irregular menstruation, small abdominal swelling, but also consider gynecological diseases, such as pelvic tumors, ovarian tumors, adnexitis, ectopic pregnancy and so on. You can go to the gynecology department of the hospital for examination. If there is a mass in the right lower abdomen, you should go to the regular hospital in time with clinical symptoms, conduct the appropriate physical examination and auxiliary examination, clarify the cause of the disease, and actively treat the cause of the disease.