Fig. 1 — The three healing phases: inflammation, repair, remodeling. Ranges, not promises.
Healing is a sequence, not a date
Soft tissue heals in three phases, described consistently across the medical literature:
- Inflammation — the first days: swelling, pain, warmth as the tissue clears damaged material. This is the phase where symptoms often peak — which is why post-crash pain frequently worsens before it improves.
- Repair — weeks: new tissue is laid down across the injury. The tissue is present but weak; the injury can feel better while it is not yet strong.
- Remodeling — weeks to months: the new tissue is reorganized along the lines of stress. Strength returns last, and loading too early can set the repair back.
The sourced ranges
- Grade I sprains and strains: typically days to weeks — the tissue was stretched, not torn.
- Grade II: weeks — a partial tear must be rebuilt.
- Grade III: months, and some complete tears require surgical repair before healing can begin.
MedlinePlus summarizes the same picture for sprains generally: recovery can take from a few weeks to several months depending on severity. For whiplash specifically, the Quebec Task Force found most patients recover within days to weeks, with a minority following a longer course.
Ranges, not promises. These are sourced, general ranges — no one can promise a date for an individual injury. What moves an injury along the range is the record: grade, imaging, and progress notes, per the grading and documentation files.
What a plateau means
When recovery stalls, the question the record asks is structural: is the grade under-stated, the compliance incomplete, or is the pain being re-injured by activity? The answer comes from a clinician, not from this desk — but the question is only answerable where the file is complete.