Pelvic mass refers to the swelling formed in the pelvic organs or tissues due to certain reasons, including benign and malignant masses. Once a pelvic mass is detected, it is necessary to consult a doctor in time to clarify the condition and take medication or surgical treatment in time to avoid delaying the condition. Benign pelvic masses refer to tubo-ovarian cysts, benign ovarian tumors, uterine fibroids, pelvic inflammatory masses or abscesses, etc. They usually grow slowly, have good mobility, and have a smooth surface with no adhesion to the surrounding tissues. There are often no conscious symptoms. Malignant pelvic mass includes ovarian cancer, colorectal cancer and other malignant tumors, female reproductive tract tumors may manifest as irregular vaginal bleeding, increased secretion and bad smell, etc. Colorectal malignant tumors may manifest as loss of appetite, blood in stool, difficulty in bowel movement, etc., generally with fast growth rate, poor mobility, accompanied by ascites and weight loss. If you find a pelvic mass, you must go to the hospital in time to do a formal examination, a comprehensive history of physical examination and related laboratory tests to clarify the condition, and timely treatment. Do not judge on your own, blindly use drugs, so as not to delay and aggravate the condition.