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.
Some medications can cause missed periods. The most common cause of missed periods due to medications is the use of contraceptives. Oral contraceptives or birth control pills like Yaz, Seasonale, or Lybrel can affect the regularity of a woman's period and lead to missed periods or irregular menstrual flow.