The main symptoms of cervicitis are increased discharge and abnormal vaginal bleeding, while the main symptoms of pelvic inflammatory disease are lower abdominal pain and increased vaginal discharge. 1. Cervicitis: Cervicitis is mainly manifested by increased leukorrhea, which may be gray or yellowish purulent leukorrhea, and abnormal vaginal bleeding, which is mainly manifested by bleeding during sexual intercourse and bleeding between menstrual periods. In addition, cervicitis will have symptoms such as pain during sexual intercourse and pain in the lower back and abdomen. 2. Pelvic inflammatory disease: The main symptom of pelvic inflammatory disease is pain in the lower abdomen, which is usually persistent and worsens after sexual intercourse and activity, and there is also an increase in vaginal discharge, which may be accompanied by an unpleasant odor. In severe cases of pelvic inflammatory disease, there will be fever and some systemic symptoms such as headache and loss of appetite. Both cervicitis and pelvic inflammatory disease are infectious diseases of the reproductive tract and should be treated actively with your doctor.