Pressing pain below the belly button may be caused by enteritis, pelvic inflammatory disease, prostatitis, appendicitis and cystitis. 1. Enteritis: refers to acute or chronic inflammatory lesions of the mucous membrane of the intestinal wall, which can cause pain under the navel when pressed, usually accompanied by diarrhea, abdominal distension, fever and other symptoms. 2. Pelvic inflammatory disease: refers to the inflammation of the female reproductive organs, connective tissues around the uterus and pelvic peritoneum, the main symptoms include lower abdominal pain, chills, high fever, loss of appetite, nausea and so on. 3. Prostatitis: it is a prostate disease mainly manifested by symptoms of urethral irritation and chronic pelvic pain, which can lead to pelvic-sacral pain, urinary abnormalities and sexual dysfunction. 4. Appendicitis: it is the inflammation caused by appendix infection. Typical acute appendicitis has metastatic right lower abdominal pain, fever and vomiting. 5. Cystitis: it is a common urinary tract infectious disease, divided into acute simple cystitis and recurrent cystitis, patients will have frequent urination, urinary urgency, lower abdominal pain and other symptoms. Patients with pain below the navel should go to the hospital in time to clarify the cause of the disease and actively cooperate with the doctor for treatment.