Skin Rejuvenation



Telangiectasia refers to small, dilated blood vessels visible near the skin’s surface, often appearing as red, web-like lines. Various factors contribute to their development. Clinically, they are associated with conditions like Hereditary Hemorrhagic Telangiectasia, Rosacea, Ataxia-Telangiectasia, Scleroderma, CREST Syndrome, and chronic liver diseases. Non-clinically, aging, sun exposure, excessive alcohol consumption, and hormonal changes can increase their risk. Although usually not harmful, they can signal underlying conditions that require treatment. They can be treated for cosmetic or comfort reasons via laser therapy, sclerotherapy, or minor surgery. Always consult a dermatologist for an evaluation and treatment plan.


Telangiectasia refers to small, dilated blood vessels near the surface of the skin or mucous membranes. They often measure between 0.5 to 1 millimeter in diameter. Telangiectasias are visually noticeable and typically present as fine, red lines that blanch on pressure, often referred to as “spider veins” because of their web-like appearance.

Various clinical conditions and non-clinical factors can contribute to the development of telangiectasias:

Clinical Causal Factors:

  1. Hereditary Hemorrhagic Telangiectasia (Osler-Weber-Rendu syndrome): This is a genetic disorder that leads to abnormal blood vessel formation, including telangiectasias.
  2. Rosacea: This is a common skin condition that can cause flushing, redness, and visible blood vessels in the face, including telangiectasias.
  3. Ataxia-Telangiectasia: A rare, neurodegenerative, inherited disease causing severe disability, which also results in the development of telangiectasias.
  4. Scleroderma: A group of autoimmune diseases that may result in changes to the skin, blood vessels, muscles, and internal organs, often leading to telangiectasias.
  5. CREST Syndrome (Calcinosis, Raynaud’s phenomenon, Esophageal dysmotility, Sclerodactyly, and Telangiectasia): This is a variant of scleroderma where telangiectasias are a common symptom.
  6. Chronic liver diseases like cirrhosis can cause telangiectasias.

Non-Clinical Causal Factors:

  1. Aging: As we age, the skin becomes thinner and blood vessels become more visible, resulting in the appearance of telangiectasias.
  2. Sun Exposure: Chronic exposure to the sun can cause damage to the skin and blood vessels, leading to telangiectasias, especially in fair-skinned individuals.
  3. Alcohol Consumption: Excessive alcohol intake can cause high blood pressure and damage to the blood vessels, increasing the risk of developing telangiectasias.
  4. Hormonal Influences: Hormonal changes during pregnancy or due to medication can lead to the formation of telangiectasias.

While telangiectasias themselves don’t typically cause serious medical problems, they can be a symptom of an underlying condition that needs to be treated. For cosmetic reasons, or if they cause discomfort, various treatments are available including laser therapy, sclerotherapy, and minor surgical procedures. It is always advisable to consult with a dermatologist for a comprehensive evaluation and treatment plan.



Telangiectasias themselves are often quite apparent. They present as small, thread-like lines in the skin, typically red, blue, or purple. These dilated blood vessels can be seen on the skin’s surface and often appear in a web-like pattern, hence the term “spider veins.” The areas most commonly affected are the face (around the nose, cheeks, and chin) and the legs, but they can appear anywhere on the body. They blanch when pressure is applied and refill from the center outward when the pressure is released. Most telangiectasias cause no symptoms, but some people may experience discomfort, itching, or a burning sensation.


Diagnosis is generally made based on the characteristic appearance of telangiectasias. Dermatologists can typically diagnose telangiectasias by visual examination alone. If the patient has multiple telangiectasias or if they are widespread, it may indicate an underlying condition. In such cases, further diagnostic investigations such as blood tests, genetic testing, or liver function tests may be necessary to identify any systemic diseases like Hereditary Hemorrhagic Telangiectasia, Rosacea, or liver disease.

In some cases, an endoscope may be used to look for telangiectasias in the digestive tract. Imaging studies such as CT scans or MRIs can also be used to look for telangiectasias or larger abnormal blood vessels (arteriovenous malformations) in the brain or other organs in patients with suspected hereditary hemorrhagic telangiectasia.

It is also important to take a thorough patient history, considering factors such as family history of vascular or skin disorders, history of sun damage, alcohol use, and medication use, as these factors may play a role in the development of telangiectasias.

Prognosis and Impact


Telangiectasias themselves are usually benign, meaning they are not life-threatening. The prognosis largely depends on the underlying cause. If telangiectasias are a symptom of a more systemic condition, like Hereditary Hemorrhagic Telangiectasia (HHT) or scleroderma, the overall prognosis will depend on managing those conditions. For example, HHT can lead to more serious complications like bleeding or arteriovenous malformations, which need medical attention.

When it comes to treatment, the prognosis is generally good. Treatments such as laser therapy, sclerotherapy, or minor surgical procedures can effectively reduce or eliminate the appearance of telangiectasias. However, new telangiectasias may form over time, especially if risk factors like sun exposure or alcohol use are not addressed.


Although telangiectasias themselves do not generally cause serious health problems, they can have a significant impact on a person’s quality of life, particularly their emotional wellbeing and self-esteem, due to their cosmetic appearance. This is especially the case when they occur in highly visible areas, such as the face.

In some cases, depending on their location, they can cause discomfort or minor symptoms. For example, in rosacea, facial telangiectasias can cause burning or stinging.

If telangiectasias are associated with an underlying systemic disease, they can serve as a visible sign of these conditions. For instance, in Hereditary Hemorrhagic Telangiectasia, where they might indicate a risk for serious internal bleeding.

Treatment Options

  1. Laser Therapy: This is one of the most common treatments for telangiectasia. The laser’s light targets the dilated blood vessels, causing them to heat up and collapse without damaging the surrounding skin. Over time, the body naturally reabsorbs these collapsed vessels. This treatment is especially effective for facial telangiectasias or for those on the legs.
  2. Sclerotherapy: This is often the preferred method for larger telangiectasias or spider veins, especially those on the legs. In this treatment, a solution (sclerosant) is injected into the affected blood vessels, causing them to swell, collapse, and eventually be reabsorbed by the body.
  3. Electrocautery or Thermocoagulation: In this procedure, an electric current is used to heat and cauterize the dilated vessels, causing them to collapse and be reabsorbed by the body. This can be useful for individual, well-defined telangiectasias.
  4. Intense Pulsed Light (IPL) Therapy: IPL delivers multiple wavelengths of light to the skin, helping to collapse and fade telangiectasias over time.
  5. Topical treatments: In cases where telangiectasias are due to rosacea, topical treatments like brimonidine and oxymetazoline can help reduce redness and the appearance of these blood vessels.

It’s important to note that while these treatments can be effective at reducing or eliminating existing telangiectasias, they do not prevent new ones from forming. Therefore, managing risk factors (such as protecting skin from sun damage, reducing alcohol intake, and controlling any underlying conditions) is an important part of managing telangiectasias.

Risks and Side Effects

The potential risks and side effects associated with the common treatments for telangiectasia:

  1. Laser Therapy: The most common side effects include temporary skin redness, swelling, and discomfort at the treatment site. There’s also a risk of skin color changes (either hyperpigmentation or hypopigmentation), especially in those with darker skin tones. In rare cases, blistering and scarring may occur.
  2. Sclerotherapy: Common side effects include bruising, redness, itching, and swelling at the injection site. There’s also a risk of skin discoloration and the formation of small, painful ulcers at the injection site. In rare cases, the sclerosant may cause an allergic reaction. Deep vein thrombosis (a blood clot in a deeper vein) is a very rare but serious risk associated with this procedure.
  3. Electrocautery or Thermocoagulation: Side effects include temporary pain, redness, and swelling. There’s a risk of skin color changes, especially in darker skin tones, and a small risk of scarring or infection.
  4. Intense Pulsed Light (IPL) Therapy: IPL can cause temporary redness, swelling, and discomfort. There’s also a risk of skin color changes, blistering, and very rarely, scarring.
  5. Topical treatments: Topical treatments such as brimonidine and oxymetazoline can cause side effects including skin redness, itching, dryness, and burning sensation at the site of application. These drugs may also cause a rebound effect, where the redness is worse after the effects of the medication wear off.

It’s important to note that all treatments should be administered by qualified healthcare professionals, and patients should be closely monitored. Side effects are generally temporary and resolve after treatment ends. A proper consultation and discussion with a dermatologist can help decide the best course of action, taking into account your skin type, the location and extent of the telangiectasias, and your personal preferences.

FAQ Section

What is Telangiectasia? 

Telangiectasia is a condition where small, dilated blood vessels become visible near the surface of the skin. They can appear as red, blue, or purple lines or patterns and are often referred to as “spider veins.”


What causes Telangiectasia? 

Telangiectasia can be caused by various factors. Clinically, they are linked to conditions like rosacea, scleroderma, and hereditary hemorrhagic telangiectasia. Non-clinical factors include sun exposure, aging, alcohol consumption, and hormonal changes.


Is Telangiectasia harmful or dangerous? 

Telangiectasias themselves are typically harmless and often cause no symptoms. However, they can be a sign of an underlying condition that may need to be treated.


How is Telangiectasia diagnosed? 

Diagnosis is generally based on a visual examination by a dermatologist. If the patient has multiple or widespread telangiectasias, further diagnostic investigations may be necessary to identify any systemic diseases.


Can Telangiectasia be treated? 

Yes, telangiectasias can be treated using several methods, including laser therapy, sclerotherapy, electrocautery or thermocoagulation, Intense Pulsed Light (IPL) therapy, or topical treatments. Your dermatologist will suggest the best treatment option based on your specific condition.


Are treatments for Telangiectasia safe? 

Yes, when administered by qualified healthcare professionals, treatments for telangiectasia are generally safe. However, like all medical treatments, they may have potential side effects, which should be discussed with your healthcare provider.


Will my telangiectasia come back after treatment? 

Treatment can effectively reduce or eliminate existing telangiectasias, but it doesn’t prevent new ones from forming. Managing risk factors like sun exposure, alcohol use, and controlling any underlying conditions is essential to prevent new telangiectasias.


How can I prevent Telangiectasia? 

While it’s not always possible to prevent telangiectasia, especially if it’s associated with genetic conditions, limiting sun exposure, reducing alcohol intake, managing underlying health conditions, and using skincare products that protect your skin can be beneficial.


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  2. American Academy of Dermatology Association. (n.d.). What is Rosacea? Retrieved from
  3. Genetics Home Reference. (2020). Hereditary Hemorrhagic Telangiectasia. Retrieved from
  4. National Organization for Rare Disorders. (n.d.). Scleroderma. Retrieved from
  5. The Cleveland Clinic. (2020). Spider Veins (Telangiectasias): Treatment. Retrieved from
  6. WebMD. (2020). Sclerotherapy to Treat Varicose and Spider Veins. Retrieved from
  7. American Society for Dermatologic Surgery. (n.d.). Laser Treatment for Scars and Keloids. Retrieved from
  8. The American Society of Retina Specialists. (2021). What is Intense Pulsed Light (IPL) Treatment? Retrieved from
  9. Mayo Clinic. (2020). Telangiectasia: Diagnosis & Treatment. Retrieved from

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