A blood clot inside a vein that is located at a deep end of the body results in deep vein thrombosis. This condition occurs in any part of the body, but it is mostly known to affect the legs. Deep vein thrombosis is referred to by a couple of other names, like postphlebitic syndrome and thromboembolism. Herein, we discuss the various symptoms and causes of this condition.

Early Warning Symptoms of Deep Vein Thrombosis
According to a report, around 50% of the people suffering from this disease exhibit its symptoms. Some of the early warning symptoms of deep vein thrombosis include

• Swelling in the ankle, foot or any other part of the leg; the swelling mostly happens on only one side
• Sharp pain in the leg that starts from the calf
• Severe pain in the ankle or the foot
• Specific area of the skin feeling warmer than the areas surrounding it
• Part of the skin becoming pale or turning blue or red

Symptoms of Upper Extremity Deep Vein Thrombosis
Apart from the aforementioned early warning symptoms of deep vein thrombosis, people who suffer from upper extremity deep vein thrombosis exhibit the following signs:

• Pain in the neck or shoulder
• Swelling in the hand or the arm
• Specific portion of the skin turning blue
• Sharp pain that originates in the forearm and moves toward the arm

Al these symptoms are not easily noticeable; one may observe them after months. Many people fail to realize that they are suffering from this condition till the time a doctor treats them for a blood clot which has been found in the lung, which is referred to as pulmonary embolism. Pulmonary embolism occurs when a blood clot, which originated in the leg or the arm, moves to the lung.

Causes of Deep Vein Thrombosis
This condition is a result of a blood clot and a clot may occur because of several reasons.

• Injury
  If the wall of a blood vessel is damaged, it can block the smooth movement of blood. This, in turn, will result in a blood clot.

• Surgery
  Blood vessels are at a great risk of being damaged during a surgical process. The risk increases if the individual, who has been operated upon, is advised bed rest after the surgery.

• Reduced Mobility
  Engaging in limited physical activities during a day results in blood accumulating in the lower portion of the legs. If it persists for a longer period, the rate at which the blood flows will considerably slow down , and a clot will develop.

• Medications
  Certain kinds of medicationshave side-effects and increase the possibility of a blood clot.