Are Varicose Veins Dangerous?

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Are Varicose Veins Dangerous?

Varicose veins, with their bulging and unsightly appearance, may seem like a mere cosmetic concern. However, it is important to understand the potential risks associated with these enlarged veins. While varicose veins may not be immediately dangerous in their early stages, they can pose significant health risks as they progress.

How do Varicose Veins Start?

Firstly, let’s understand how varicose veins start. The development of varicose veins begins internally within the veins. These blood vessels have valves that help prevent blood from flowing backward. However, when these valves become weak or damaged, blood can accumulate and pool in the veins, causing them to stretch and become varicose. Factors such as age, genetics, obesity, pregnancy, and prolonged standing or sitting can contribute to the development of varicose veins.


This means that a varicose vein has often started but is not visible from the outside. There is no way to know if you have them without the visible signs or doing a screening scan with duplex ultrasound. A Duplex ultrasound uses high-frequency sound waves to look at the direction of blood flow, and anatomical map of the leg veins. It helps to reveal any abnormal flow patterns and pathology.

At What Stage do Varicose Veins Become Dangerous?

In their early stages, varicose veins are not typically considered dangerous. They may only cause minimal discomfort, aching to no symptoms at all in the initial period. The immediate health risks are minimal except for the look of them. However, as the condition progresses and the veins become more pronounced, there is an increased risk of complications.

How are Varicose Veins Dangerous?

The dangers associated with varicose veins primarily arise from the potential development of complications. These complications can include:

  • Blood Clots: Varicose veins can increase the risk of developing blood clots, both superficial venous thrombosis (clots in the superficial veins) and deep vein thrombosis (clots in the deep veins). Blood clots pose a serious health concern as they can dislodge and travel to vital organs, such as the lungs, heart, or brain, leading to potentially life-threatening conditions.
  • Skin Ulcers: In advanced cases, varicose veins can cause the skin to deteriorate, forming ulcers. These ulcers are sometimes painful, open wounds that can be challenging to heal and may increase the risk of infection.
  • Bleeding: The weakened and enlarged veins in varicose veins are more prone to bleeding, especially if they are scratched or injured. Even minimal trauma can cause them to bleed. While the bleeding may not be life-threatening, it can be difficult to control and may require medical attention.

Although these complications may not pose immediate threats, they can become serious and more extensive as the condition worsens. It is important to note that once these complications occur, they can cause permanent damage to veins and especially the skin in the region, underscoring the importance of early intervention and treatment.

What are the Indicators that Varicose Veins Have Become Dangerous?

There are several signs and symptoms that indicate varicose veins have become dangerous and require medical attention:

Swelling: Severe swelling in the legs or ankles, especially accompanied by pain or tenderness, may indicate a potential blood clot or other complications.

Skin Changes: If the skin around the varicose veins becomes discolored, hardened, or starts to develop sores or ulcers, it is a warning sign that the condition has progressed and is not becoming or more severe form of chronic venous disease.

Pain and Discomfort: Varicose veins that cause persistent pain, throbbing, or aching, particularly in conjunction with swelling or warmth, may indicate worsening venous disease.

Heat and Redness: The presence of warmth, redness, or inflammation in the affected area can suggest the presence of a blood clot or inflammation and even an infection.

If you suspect that you have varicose veins or are experiencing any symptoms associated with the complications mentioned above, it is crucial to seek medical attention, especially when it has suddenly occurred and is painful. A qualified healthcare professional such as a vein specialist (called a Phlebologist can assess the severity of your varicose veins and recommend appropriate treatment options. Early diagnosis and treatment can help prevent further complications and reduce the potential dangers of varicose veins.

Managing varicose veins so they don’t become dangerous

While self-management strategies cannot cure varicose veins, they can help alleviate symptoms, slow down their progression, and improve overall vein health. Here are some self-care tips that can be beneficial in managing varicose veins:

  • Regular Exercise: Engaging in low-impact exercises such as walking, swimming, or cycling can help improve circulation and strengthen the leg muscles. This, in turn, assists in reducing the pooling of blood in the veins and alleviating symptoms associated with varicose veins.
  • Maintain a Healthy Weight: Excess weight puts additional pressure on the veins, worsening the symptoms of varicose veins. Maintaining a healthy weight or losing weight if necessary can help alleviate the strain on the veins and improve blood flow.
  • Elevate Your Legs: Elevating your legs above the level of your heart whenever possible can help promote better blood flow and reduce swelling in the legs. Prop your legs up on a pillow or cushion while resting or sleeping to facilitate proper circulation.
  • Avoid Prolonged Sitting or Standing: Prolonged periods of sitting or standing can worsen varicose veins by impairing blood flow. If your job requires long periods of sitting or standing, take frequent breaks to stretch your legs and move around. Additionally, try to avoid crossing your legs while sitting.
  • Compression Stockings: Wearing compression stockings can help improve blood circulation and reduce discomfort caused by varicose veins. These specially designed stockings apply pressure to the legs, aiding in the upward flow of blood and preventing blood from pooling.
  • Healthy Diet: Following a balanced diet rich in fibre, fruits, and vegetables can help maintain healthy blood vessels. A diet low in sodium can also help reduce swelling and water retention.
  • Avoid Tight Clothing: Tight clothing, especially around the waist, groin, and legs, can restrict blood flow and contribute to the development or worsening of varicose veins. Opt for loose-fitting clothes that allow proper circulation.
  • Regular Leg Movement: Avoid sitting or standing in one position for prolonged periods. Make an effort to move your legs frequently, flexing and extending your ankles, and performing simple leg exercises to promote blood flow.

While these self-care measures can provide relief and slow down the progression of varicose veins, it’s important to note that they may not be sufficient to manage advanced or severe cases. If you experience persistent pain, swelling, or other concerning symptoms, you should consult a Phlebologist for a comprehensive evaluation and personalised treatment plan.

If my varicose veins have become dangerous will I need to go into hospital?

The need for hospitalisation in cases of dangerous varicose veins depends on the severity of the condition and the specific complications involved. In some instances, immediate medical attention and intervention may be required, involving a hospital stay. However, it is important to note that not all cases of dangerous varicose veins automatically necessitate hospitalisation.

For example, if you develop a superficial venous thrombosis (clot) or a deep vein thrombosis (DVT) as a result of varicose veins, the treatment approach will depend on the extent and location of the clot. In certain cases, blood thinning medications may be prescribed to prevent the clot from increasing in size or travelling to other parts of the body. This treatment can often be managed on an outpatient basis, with regular monitoring and follow-up appointments.

However, if the clot is extensive or poses a significant risk, or if there are complications such as infection, a clot in the lungs or brain or severe bleeding from varicose veins, hospitalisation may be necessary. In these cases, you may require closer monitoring whilst the acute stage resolves.

It’s important to consult with a Phlebologist if you suspect that your varicose veins have become dangerous. They will evaluate your condition, assess the potential risks, and determine the most appropriate course of treatment. Most times, hospital stays are not required.


In conclusion, while varicose veins may initially appear to be a cosmetic nuisance, they are not dangerous by any means and most can be treated despite how extensive they are. . The severity and worsening of the varicose veins may lead to the potential development of blood clots, skin deterioration, bleeding from the veins, and the formation of wounds. Seeking medical advice and considering appropriate treatment options is essential for managing varicose veins and reducing the associated health risks. Remember, early intervention is key to maintaining healthy veins and ensuring none of the complications are permanent.

Research and resources

Association of Varicose Veins With Incident Venous Thromboembolism and Peripheral Artery Disease | Peripheral Arterial Disease | JAMA | JAMA Network
Varicose veins – Symptoms and causes – Mayo Clinic

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