Delayed menstruation, right groin and right lower back pain is considered to be related to the imminent onset of menstruation, poor lifestyle habits, pregnancy, right adnexitis, etc. 1. The imminent onset of menstruation: for those who have not delayed menstruation for more than 7 days and have not had sex recently, the changes in sex hormone levels in the body due to the imminent onset of menstruation can lead to the uterus in a state of congestion, which can sometimes lead to the phenomenon of pain in the right groin and the right posterior waist. 2. Poor living habits: a few women consume a lot of cold food, do not pay attention to the lower abdomen to keep warm or excessive strenuous exercise, etc., may be induced to delay menstruation of the right side of the groin and the right back pain phenomenon, but this situation of women’s menstruation delay is generally not more than 7 days. 3. Pregnancy: For those who have recently had sex and have delayed menstruation for more than 7 days, it is necessary to be alert to whether the delayed menstruation, right groin and right lower back pain is caused by pregnancy. 4. Right-sided adnexitis: When pathogens infect the right adnexa of women, it can induce right-sided adnexitis. Typical symptoms include right lower abdominal pain, increased vaginal discharge, fever, etc. It can also be manifested as delayed menstruation, right groin and right lower back pain. It is recommended that people with delayed menstruation, right groin and right lower back pain should consult a doctor for examination. If it is clear that the disease is caused by the disease, it is necessary to actively comply with the doctor’s instructions for treatment to improve the uncomfortable symptoms.