New complications of sclerotherapy

The complications of sclerotherapy

After the application of sclerotherapy it is possible for complications to exist. These complication are usually not threteaning for the patient's health and his/ her general situation. They are particularly annoying due to the fact that they include the appearance of spots on the skin or other skin defects. They affect the good aesthetics of the leg, which possibly is the reason our patients apply the treatment. Luckily, the technique and strategic that is applied during the sclerotherapy from the doctor can reduce the appearance of these complications.


Discoloration is the development of brown-yellow skin marks, on the areas that have been subjected to sclerotherapy. Some times they have the shape of veins that preexisted on the area. The appearance of discoloration can be affected by the technique of sclerotherapy, the use of compression after the session, the density and the kind of medicine used, the intake of iron supplements from the patient, and the skin predisposition.

The pleasant fact of this matter is that the marks of discoloration in their vast majority are not permanent, but they fade gradually. Those than remain after a year from the time they appeared are usually permanent.

Appearance of new, thin spider veins (Telangiectatic Matting)

It is the appearance of new, especially thin spider veins, in the area that has been subjected to sclerotherapy. The frequency with which they appear is rather small, around 10% , and it depends on the technique of sclerotherapy used, the intake of estrogen, and body weight. Usually they disappear after 3-12 months, but if they insist they can be subjected to treatment (supplemental sclerotherapy and dermal laser).

Dermal Necrosis

The development of ulcer (necrosis) of the skin in the area that has been subjected to sclerotherapy is an extremely rare complication. Though it has small dimensions, it is extremely painful and its healing takes time, and it tends to leave a mark. It is associated with the technique of sclerotherapy and the injection of medicine outside of the vein or in an arteriolus that leads to the area with the spider veins. Therefore, the careful and proper use of the technique reduces significantly the appearance of this complication.

Allergic reactions

The appearance of an allergic reaction in the advanced medicine used during the sclerotherapy is extremely rare (the percentage is <0.01%).