What causes lower abdominal bloating and pain with a missed period?

Lower abdominal bloating and pain, along with a delayed menstrual period, may have several possible causes. Staying up late frequently or experiencing significant emotional fluctuations can disrupt the body's endocrine system, leading to hormonal imbalances that affect the menstrual cycle. This may result in menstrual irregularities, including delayed periods and lower abdominal discomfort. For women who are not using contraception, this situation could also be an early sign of pregnancy. During pregnancy, hormonal changes may cause the menstrual period to be delayed and may be accompanied by mild lower abdominal bloating or pain. It is also important not to overlook potential medical conditions—gynecological disorders such as uterine fibroids or pelvic inflammatory disease can also cause abdominal pain and irregular menstruation. If left undiagnosed and untreated, these conditions may negatively impact a woman's health. When experiencing such symptoms, it is advisable to seek timely medical evaluation to identify the underlying cause and receive appropriate treatment.