Spider Veins (Varicose Veins)

Cosmos Clinic provides treatment options for Spider Veins

What type of leg veins do you have?

Generally speaking, leg veins come in 2 different variations:

  • Spider or Reticular Veins: These are small thin veins normally blue or red in colour and can appear on most parts of the leg. They are a common problem, particularly in women after pregnancy and in people with varicose veins.
  • Varicose Veins: These veins are generally much bigger (greater than 1cm in diameter) and are quite often raised or “lumpy”. They are generally blue in colour however, they can also manifest with no colour at all.

What causes Spider Veins?

These unwanted blood vessels often occur as an inherited tendency, and may be part of the aging process. Long periods of standing or sitting, trauma to the leg from blows or falls, pregnancy, birth control pills, and hormone replacement therapy are all factors that can be involved.

Exercise and normal weight maintenance may help prevent the onslaught of spider veins.

Treating Spider Veins with Sclerotherapy

Sclerotherapy involves injecting a solution into the vein with a very fine needle to cause inflammation and collapse. Once the vein has collapsed, no blood can re-enter and the vein is absorbed by the body’s natural responses.

Sclerotherapy requires 30-45 minutes depending on the number of areas being treated. No sedation or anaesthesia is needed. Patients may experience mild temporary cramping during the injection as the solution enters the vessel. This sensation resolves within minutes. Injection sites are covered with gauze and tape, and the legs are usually wrapped with an elastic wrap.

Patients are encouraged to walk immediately after the procedure, and the wrap is removed in 24 hours. No wound care is required. The treated vessels gradually disappear over the following month.

Is Sclerotherapy safe?

Sclerotherapy is a safe procedure with few significant risks. Less than 5% of patients experience even minor adverse effects. The most common complication is the development of brownish pigment in the treated area, similar to a freckle, which usually disappears within 2 to 6 months. If the veins are unusually weak, there may be some temporary bruising around the injection site.

Patients may develop a tiny scab at the injection site if any of the solution escapes from the blood vessels. The scab is treated with an antibiotic ointment until it clears. There is little risk of infection or ulcers from Sclerotherapy.

How many treatments sessions will I need to eliminate my Spider Veins?

It will depend on the severity of the condition and the extent of improvement desired. Most patients can expect a 50% – 90% improvement after several treatments. To guarantee success and counteract the appearance of new spider veins, touch-up treatments may be required every year or so. Most patients require more than one treatment to obtain the desired results.

What happens after the procedure?

After the procedure, patients with reticular veins can return home wearing a pressure dressing and/or pressure hosiery to prevent post-injection bleeding, as well as to promote healing. Patients with spider veins do not need a pressure dressing.

A healing interval (typically 1 month) must pass before you can have another series of injections in the same area. After each treatment, you will notice further improvement of your appearance.

Clinic Locations

Come visit for a consultation

10 Henrietta Street

Double Bay NSW 2028

Monday to Saturday

8:30am - 5:30pm


163 Archer Street

North Adelaide, SA, 5006


9am - 5pm


10am - 6pm

Wednesday to Friday

9am - 5pm


Suite 1, Ground Floor, Equinox 2

70 Kent Street, Deakin ACT 2600

Monday to Friday

9am - 5:30pm


By Appointment

Gold Coast

220 Ashmore Road

Benowa QLD 4217

Monday to Friday

9am - 5pm