Hidden pain on the right side of the abdomen may be caused by appendicitis, hernia, urological diseases, etc. Women may also be caused by gynecological diseases. 1. appendicitis: appendicitis is an acute inflammation caused by an infection of the appendix, which is located in the lower right abdomen of the human body and can cause pain on the right side of the abdomen. 2. Hernia: in the right abdomen pain at the same time, usually in the right inguinal area there will be a lump, most can be returned, some patients will be incarcerated, the need for timely surgical treatment. 3. Urological diseases: diseases of the urinary system, inflammation of the right ureter, stones, tumors and other diseases can cause pain in the right lower abdomen, combined with urinary urgency, frequent urination, urinary pain and other symptoms. 4. Gynecological diseases: hidden pain on the right side of the abdomen may be caused by gynecological diseases, such as right follicular rupture, right adnexitis, right ovarian cysts, chronic pelvic inflammatory disease, right tubal ectopic pregnancy, which can cause hidden pain in the right abdomen. In addition to this, right hemicolon inflammation, tumor, intestinal obstruction, intussusception, etc. can also cause hidden pain in the right lower abdomen. It is recommended that patients go to the hospital for relevant examinations to clarify the causes and actively treat them.