Hematoma After Filler: Causes and Care

A hematoma is a collection of blood in the tissue caused by injury to a small vessel during the injection. On the skin, it shows as a purplish patch that, over the days, turns greenish and yellowish until it disappears. It is one of the most common complications of injectable procedures and, in most cases, has no consequence beyond temporary cosmetic ones.

What raises the chance of a hematoma?

• Highly vascular areas, such as the lips and the periorbital area.
• Number of punctures: each pass with a needle is another chance to hit a vessel. A cannula, with a single entry point, usually reduces that number.
• Medications and supplements that affect clotting, as well as the patient's medical conditions. That is why the medical history asks about them.
• Thin skin and capillary fragility.

How long does it last?

In general, a hematoma resolves in one to two weeks. Local compression right after the injection helps limit bleeding. Advising the patient ahead of time keeps them from booking the procedure close to an important event.

How can you tell it from a warning sign?

A typical hematoma appears soon, is well defined and does not come with disproportionate pain. A purplish or lacy patch that spreads, with pallor, severe pain or a change in temperature, however, may indicate vascular compromise and calls for immediate assessment. More detail in safety and complications.

Also called: bruise, ecchymosis (when it is a flat, diffuse patch).