The Woman's Doctor: Leg cramps during pregnancy

The causes of leg cramps in pregnancy are varied. Leg cramps can be associated with imbalances in electrolytes, causing involuntary muscle contractions that can be anywhere from mild to quite painful. The most common theory is that the cramps may be caused by a buildup of metabolic by-products in the muscle, like lactic acid. Dr. Rachel Adams from Mercy Medical Center has more.