Thread veins, also known as spider veins or broken capillaries, are tiny, dilated blood vessels that appear just beneath the surface of the skin. They typically appear as red or blue lines on the legs or face, however can appear anywhere on the body. They occur when small veins near the skin’s surface become damaged or dilated, causing them to become visible. The medical term for this condition is “Telangiectasia”.
Thread veins are often referred to as spider veins because of their “spidery”, web-like appearance, with damaged veins resembling a network of fine lines branching from central points on the skin’s surface. Whilst thread veins are completely harmless from a medical perspective, they can be a cosmetic concern for a lot of people, impacting self-esteem and confidence.
At Smoothlines I provide IPL laser therapy, designed to improve the appearance of thread veins and alleviate associated symptoms. This procedure is straightforward and routine, offering individuals the opportunity to easily address their concerns and regain confidence in their skin’s appearance.



What Causes Thread Veins?
There are many causes of thread veins, and in most cases the exact cause remains unknown. However, several factors are commonly associated with the development of thread veins:
- Genetics: Some people may inherit a predisposition to develop thread veins. Genetic factors can influence the strength and integrity of blood vessel walls.
- Age: The ageing process can contribute to the weakening of the skin and blood vessels. As people get older, the skin loses its elasticity, and the veins may become more visible near the surface.
- Hormonal changes: Fluctuations in hormones, such as those occurring during pregnancy, menopause, or as a result of birth control pills, can impact the development of thread veins. Hormonal changes may affect the elasticity of blood vessel walls.
- Trauma or injuries: Injuries or trauma to the skin can damage blood vessels and contribute to the formation of thread veins. This is more common in areas where the skin has been subject to injury or repeated trauma.
- Other factors include sun damage, lifestyle choices (such as smoking or excessive alcohol consumption), and prolonged periods of standing or sitting.
Thread veins can also be caused by varicose veins. Increased pressure in the veins can push pooled blood back into smaller veins, causing them to become damaged and appear through the surface of the skin. The alternative is not true however, and thread veins do not cause or become varicose veins over time.
Thread Vein Symptoms
In most cases, thread veins do not cause any symptoms other than how they impact the appearance of the skin. The majority of people who seek treatment for thread veins are looking to improve their cosmetic appearance and to regain their confidence.
Some people, however, do exhibit certain symptoms and it is recommended to consult with an expert to assess any indicators of underlying venous insufficiency, particularly if thread veins are present on the legs.
Some common symptoms associated with thread veins are as follows:
- Appearance of red or blue veins
- The most noticeable symptom is the appearance of red or blue veins on the skin’s surface. The veins are typically thin and concentrated to areas such as the face or legs.
- Cosmetic concerns
- Many people seek treatment due to cosmetic concerns on the appearance of their skin, which can make people self-conscious and have an impact on their mental health. The desire to improve the overall appearance of the skin and boost self-esteem is a common motivation for seeking cosmetic interventions.
- Mild discomfort
- Some individuals may experience mild discomfort or aching in the affected area. This discomfort is usually not severe and may be more noticeable after prolonged periods of standing or sitting. However, it’s important to distinguish between the mild discomfort associated with thread veins and more significant discomfort related to other serious vascular conditions.
- Itching or burning
- In more severe cases, spider veins may occasionally cause itching or burning sensations, often due to the accumulation of metabolic waste products in the surrounding tissues. If itching or burning is a significant concern, it’s advisable to consult with a healthcare professional to rule out other potential underlying conditions.
IPL therapy, like laser therapy, uses broad-spectrum light to target and remove spider veins. The light is absorbed by the blood vessels, causing them to rupture and eventually disappear. IPL is widely used to treat facial thread veins.