Dr. Michael Brown, a board-certified vascular surgeon of Vascular Surgical Associates – Southwest General Medical Group, Inc., explains that leg swelling, also known as edema, occurs when fluid builds up in the tissues of the leg. This fluid accumulation can happen for several reasons, including lifestyle habits, medical conditions and even genetic predisposition.
Here are some of the most common causes of leg swelling:
- Lifestyle factors: Prolonged sitting or standing, especially at jobs that require you to be on your feet for extended periods, can lead to leg swelling. Gravity causes fluid to collect in the lower extremities, particularly when movement is limited. Desk jobs, factory work and nursing are a few examples of professions where leg swelling is common.
- Diet and weight: Carrying excess weight in the abdominal area can put pressure on the veins, leading to swelling in the legs. A diet high in salt also can contribute to fluid retention, further worsening the issue.
- Medical conditions: Certain medical conditions, such as heart disease, kidney disease and nerve issues stemming from the back, can result in leg swelling. Vein-related problems such as venous insufficiency—when the valves in the veins do not close properly—also can cause fluid to pool in the lower extremities.
- Genetics: Family history plays a role as well. If close family members have experienced varicose veins or other vascular issues, you may be more likely to develop similar conditions.
When to Be Concerned About Leg Swelling
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