milk leg

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A painful swelling of the leg occurring in women after childbirth as a result of clotting and inflammation of the femoral veins.

from The Century Dictionary.

• noun Same as phlegmasia dolens. See phlegmasia.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun painful thrombosis of the femoral vein in the leg following childbirth