What are bulging veins?

Bulging of the veins is a symptom that commonly occurs in different conditions, such as thrombophlebitis, pregnancy, older age, and congenitally defective valves in the veins. Varicose veins are dilated, often distorted, and swollen veins that may be painful. Varicose veins are most frequently seen in the legs.

Bulging Veins Spotlight

Veins have valves that act as one-way flaps to prevent blood from flowing backward as it moves up the legs. Bulging of the veins results when the valves do not function properly, allowing the blood to pool and enlarge the vein. It may occur in conditions affecting the vein itself or in association with more generalized conditions, such as pregnancy and aging. Inflammation and swelling of a vein (thrombophlebitis) is a common cause of bulging veins. Other common causes include lack of movement and obesity. Obstructions to the flow of blood in the veins can also cause bulging.

Pregnancy can lead to bulging veins in some women. Pregnancy increases the volume of blood within the body but decreases the flow of blood from the legs to the pelvis. The decreased blood flow from the legs can result in bulging veins in the legs. Bulging veins may worsen during late pregnancy, when the uterus exerts greater pressure on the veins in the legs.

Advancing age can also cause bulging veins. The aging process can cause veins to weaken and lose elasticity, and they become unable to effectively push the blood back toward the heart. As blood pools in the veins, they become enlarged and bulge.

In some cases, bulging of the veins can be a symptom of a serious condition. Seek prompt medical care if you experience bulging veins along with skin ulcers or sudden swelling in the area of the bulging veins. These are symptoms of peripheral vascular disease and blood clots. In addition, if your bulging veins are persistent or cause you concern, seek prompt medical care.

SYMPTOMS

What other symptoms might occur with bulging veins?

Bulging veins may accompany other symptoms, which vary depending on the underlying disease, disorder or condition. Symptoms that frequently affect the veins may also involve other body systems.

Leg symptoms that may occur along with bulging veins

Bulging veins may accompany other symptoms affecting the legs including:

CAUSES

What causes bulging veins?

Bulging veins usually result from weak or damaged valves in the veins. The heart pumps blood that supplies oxygen and nutrients to the whole body through the arteries. Veins then carry the blood from the body back to the heart. As leg muscles contract, they push blood back to the heart from the lower body against the flow of gravity. Veins have valves that act as one-way flaps to prevent blood ... Read more about bulging veinscauses

Medical Reviewer: Cynthia Haines, MD Last Annual Review Date: Aug 1, 2013 Copyright: © Copyright 2014 Health Grades, Inc. All rights reserved. May not be reproduced or reprinted without permission from Health Grades, Inc. Use of this information is governed by the HealthGrades User Agreement.

This Article is Filed Under: Heart, Blood and Circulation