Why is there fluid retention with a menstrual cycle?
PMS-H (H = hyperhydration) is characterized by weight gain (greater than three pounds), abdominal bloating and discomfort, breast tenderness and congestion, and occasional swelling of the face, hands, and ankles. These symptoms are due to an increased fluid volume, secondary to an excess of the hormone aldosterone which causes increased fluid retention. Aldosterone excess during the premenstrual phase of PMS-H patients may arise due to stress, estrogen excess, magnesium deficiency, or excess salt intake.
