The Claim
Inflammation has become something of a universal villain — a word that, in popular health conversation, is almost always paired with "reduce," "fight" or "eliminate," as though any inflammatory activity in the body represents a problem to be suppressed as quickly as possible.
Why Acute Inflammation Exists in the First Place
Acute inflammation is not a design flaw — it is the body's essential, tightly orchestrated first response to tissue injury, and genuine healing cannot proceed normally without it. Within minutes of an injury such as a muscle strain, local blood vessels dilate and become more permeable, allowing neutrophils and then macrophages to migrate into the damaged area, clear debris and dead cells, and release growth factors that signal the proliferative phase of repair to begin. Suppressing this process pharmacologically in the earliest phase after acute injury — for example with high-dose anti-inflammatory medication taken aggressively in the first 24-48 hours — has been associated in some studies with impaired, rather than accelerated, tissue healing, a finding that underpins the shift away from reflexive early anti-inflammatory use seen in contemporary soft tissue injury management (reflected in frameworks such as PEACE & LOVE, which explicitly advises avoiding anti-inflammatories in the acute phase).
When Inflammation Becomes a Problem
The genuine concern is not acute inflammation itself but inflammation that fails to resolve on the expected timeline, or that becomes chronic and low-grade — driven by factors such as persistent mechanical overload, metabolic conditions, poor sleep or ongoing psychological stress. This kind of unresolved, chronic inflammatory state is associated with tissue degeneration, delayed healing and, in conditions like tendinopathy, has a more complex relationship with pain than a simple "more inflammation equals more pain" model would suggest — much tendon pathology, for instance, shows relatively modest classical inflammatory cell involvement once past the earliest acute phase, and is better characterised as a failed or disorganised healing response than ongoing inflammation per se.
The Verdict
Acute inflammation is a necessary and biologically indispensable part of normal tissue repair, not a process to be reflexively suppressed. The genuine problem is chronic, unresolved, or excessive inflammation that persists beyond its useful purpose — a meaningfully different clinical scenario from the ordinary swelling and warmth that follows a fresh injury and signals that healing is underway as it should.
References & Further Reading
- Dubois B, Esculier JF. Soft-tissue injuries simply need PEACE and LOVE. Br J Sports Med. 2020;54(2):72-73.
- Mackey AL, Mikkelsen UR, Magnusson SP, Kjaer M. Rehabilitation of muscle after injury: the role of anti-inflammatory drugs. Scand J Med Sci Sports. 2012;22(4):e8-e14.