The enlarged uterus may compress the abdominal and pelvic veins know as the inferior vena cava and the common iliac veins, respectively. Even before the uterus begins to enlarge significantly, hormonal factors cause the veins to become more compliant. Together with the increased venous pressure that occurs later in pregnancy, these factors cause significant venous distension and exaggerate the factors that predispose the patient to vein dysfunction.
Consequently, varicose veins often appear during a first pregnancy and become more severe with subsequent pregnancies.
Dr. Franciosa, at Vein Nevada, treats patients in the northern Nevada area with vein conditions at his office in Reno.