For how long has this condition been present?
Discolorations of the lower extremities may suggest an underlying vascular problem. It is necessary to note
other associated signs and symptoms like swelling of the extremities, any scaling or dryness, any decrease in
sensation, any ulcerations, any nail changes and any presence of varicosities. These may suggest venous
insufficiency "where veins do not efficiently return blood from the limbs back to the heart. It may occur
following excessive blood clotting (such as deep vein thrombosis) and leg veins inflammation. It can also
result from the failure of the vein valves to close properly and to hold blood against gravity. " or if
in the presence of underlying disease conditions like diabetes and risk factors like smoking this may suggest
Abnormal spasms of the blood vessels as in the case of Raynaud's phenomenon may also present with
discolorations of the extremities. "Raynaud's phenomenon (RP) is a condition resulting in a
particular series of discolorations of the fingers and/or the toes after exposure to changes in temperature
(cold or hot) or emotional events."
A duplex scan of the lower extremities to assess the blood vessels may be able to help.