Online Vein Self-Assessment


C3: Edema

C3 – denotes the presence of edema (swelling) of the ankle. Best visualized from the back rather than the front.

c3 edema

This is defined as a perceptible increase in volume of fluid in the skin and subcutaneous tissue characterized by indentation with pressure.   Venous edema usually occurs in the ankle region, but it may extend to the leg and can involve the foot.

Most people recognize swelling but typically do not understand or know the source.  Swelling can be an external sign of a vein problem called venous insufficiency. Venous insufficiency is more likely to be present in patients who have vein-related symptoms such as chronic pain and/or discomfort, leg heaviness, leg fatigue, leg swelling, itching, or leg cramping.

  • Swelling can be associated with varicose or spider veins.
  • Swelling may involve one or both legs.  Swelling in only one leg may suggest a blockage to the blood flow in the vein.  This may be more serious.
  • The exact location of swelling, such as involvement of the toes, may suggest a disorder of the lymphatic system, termed lymphedema.
  • Swelling in one leg, if chronic, may also indicate a lymphatic problem.
  • Swelling is caused by impaired drainage of lymphatic fluid.
  • An acute painful, swollen leg is very serious. If this occurs, urgent medical attention is indicated.

Finding the Right Doctor

A crucial step in obtaining the best treatment and results is finding the right doctor. The American College of Phlebology (ACP) is the premier association for vein care specialists in the United States. With more than 2,000 physicians and allied health care professionals in the network, finding a doctor in your area has never been easier. Click the link below to visit the ACP’s find a physician page and locate a doctor near you.

Find a Physician

More Information:

Symptoms Detection Treatment  Risk Factors


Symptoms commonly described by patients suffering from venous disease include:

  • visual abnormalities
  • leg discomfort
  • pain
  • aching
  • throbbing

  • burning
  • heaviness
  • fatigue
  • swelling
  • intense itching

If you experience leg symptoms, seeking professional advice is suggested.


Vein disorders are not always visible; diagnostic techniques are important tools in determining the cause and severity of the problem. In addition to a physical examination, non-invasive diagnostic “duplex” ultrasound is often used.  Duplex ultrasound can accurate detect venous blood clots and abnormal blood flow.


  • The treatment of any venous problem should begin with a comprehensive consultation with a vein specialist.
  • Symptoms are often eliminated or greatly improved with treatment.
  • Conservative treatment such as wearing compression stockings may alleviate or reduce symptoms.
  • Regular exercise, such as walking or swimming, is recommended.
  • Scientific studies have shown that plant-based bioflavenoid supplements have anti-inflammatory properties and can have beneficial effects on vein disorders as well.
  • Natural supplements can be an important addition to your vein treatment.  Some supplements have been found effective to reduce aching, heaviness, and swelling in the legs.
  • When patients seek medical attention, a diagnostic test might be useful in determining the exact cause of the problem.
  • Vein disorders are not always visible; diagnostic techniques are important tools in determining the cause and severity of the problem.
  • In addition to a physical examination, non-invasive diagnostic “duplex” ultrasound is often used.  Duplex ultrasound can accurately detect venous blood clots and abnormal blood flow and can often discover the root cause.
  • Physical therapy may be indicated to assist in fluid/edema reduction.

Risk Factors

There are a number of reasons why swelling occurs. Physicians refer to these causes as risk factors. As people age, conditions typically worsen. Small problems that started earlier often progress into larger ones.

Some other risk factors include:

Family History  Trauma  Medications  Pregnancy  Occupation  Other

Family History

  • If you have immediate family members who have venous disease, chances are that you may develop one as well.  Vein disorders are hereditary.
  • Inherited factors related to blood clots or clotting disorders are also important, as you could also have inherited the same clotting disorder.

Trauma or Injury

  • Soft tissue injuries can often result in the onset of swelling due to damage of the venous or lymphatic drainage.
  • This can happen as a result of an impact injury, such as getting hit with a ball or another hard object.   Trauma can subsequently lead to thrombosis.  Varicose veins in that area of your leg may appear.
  • The damaged veins may not be evident for some time.
  • Post-surgical patients carry risks for blood clots, often due to inactivity or immobility.


  • Female hormones such as estrogen and progesterone can cause spider veins to form.
  • The most common medications to do this include oral contraceptives (birth control pills), hormone replacement therapy, and infertility drugs.


  • Progesterone levels remain very high during pregnancy.
  • Progesterone relaxes the muscle in the vein walls, allowing them to stretch.
  • Many women notice large numbers of new veins during their pregnancy for this reason.
  • The physiologic changes that a woman undergoes during pregnancy place her at risk for the development of venous disease.
  • Swelling is a common complain among pregnant women.


  • If you have swelling, you may notice that the condition worsens while standing or sitting for long periods of time.
  • Teachers, nurses, flight attendants, hairstylists, sales clerks, etc., are very prone to developing end of day swelling.
  • An underlying venous problem may be present when swelling is evident.

Other Medical History

  • The presence of swelling may be a sign of heart disease, kidney disease, or other medical problems.  A patient with swelling should seek medical care.
  • People often assume that weight is a risk factor in venous disease. While many patients find that they feel better when they maintain a healthy weight, the actual influence of weight and the incidence of swelling is not clearly known.
  • Gait: how we walk is critical to movement of the blood.  It is important to have the blood pumped through the veins by activating our calf muscles.  This can be facilitated by fully flexing the ankle, known as dorsiflexion.
  • Blood clots: often familial but a very important risk factor for venous disease.