Former British Prime Minister Margaret Thatcher pauses at the casket of former President Ronald Reagan as he lies in state in the Capitol Rotunda on June 9, 2004, on Capitol Hill in Washington.
Yes, perhaps many of the causes are not severe, but there are conditions that should cause concern and require immediate consultation with a physician. Throbbing leg pain could be caused by sciatica. The sciatic nerve is the longest of all the nerves in our body. This nerve originates from the lower back and proceeds all the way down to the thighs of each leg and to the feet. The sciatic nerve supplies sensation to the leg.
Other cardiovascular causes of leg swelling include thrombophlebitis, venous insufficiency and a large blood clot in the leg, often in the calf. This is called a deep vein thrombosis. Other serious causes of leg swelling include kidney disease, preeclampsia and liver disease, such as cirrhosis of the liver. Orthopedic conditions that can cause leg swelling include dislocations, bone fractures, a cast that is too tight, contusion, ankle sprain, and ligament injuries and tendon injuries.