01/04/2026
Corticosteroid injections are a long-standing treatment for hypertrophic scars and keloids.
When used appropriately, they can soften scars, reduce inflammation, and temporarily decrease scar volume. In some cases, the response can be excellent.
However, steroid injections are not a definitive solution for many keloids.
Keloid biology is driven by abnormal collagen regulation and mechanical tension, and while steroids can suppress scar activity, they do not correct the underlying tendency to recur.
For this reason, improvement is often temporary when injections are used as a single modality, particularly in established keloids.
There are also important technical limitations. The ideal injection plane is the papillary dermis — a very small, already tight space.
When fluid is injected under pressure, it follows the path of least resistance rather than remaining perfectly confined.
This can lead to dents, dermal atrophy, white flecks, hypopigmentation, and visible telangiectasia.
These side effects are not rare and reflect the physics of injection as much as the medicine itself.
For these reasons, steroid injections are often best used as part of a broader treatment strategy rather than as a standalone solution.
Combining modalities that address vascularity, collagen deposition, and mechanical tension generally produces more stable long-term outcomes than relying on a single intervention.