the executive power of the federal government is vested in the president. the president has the power to appoint ambassadors, members of the Cabinet, Justices of the Supreme Court and Judges of the lower Federal Courts.
Page Content. Menstrual irregularities can be caused by a variety of conditions, including pregnancy, hormonal imbalances, infections, malignancies, diseases, trauma, and certain medications. Common causes of anovulatory bleeding (absent, infrequent periods, and irregular periods) include: Adolescence. Uncontrolled diabetes.
If you are not pregnant, other causes of missed or irregular periods include: 1  Excessive weight loss or gain. 2  Although low body weight is a common cause of missed or irregular periods, obesity also can cause menstrual problems.