A six-month prognosis can be useful where it reflects the claimant’s actual recovery. It becomes unsafe when it is applied as a default. The claimant is not a tariff band, and recovery does not always follow the neat timetable that litigation wants. The expert must look at the course so far, the records, treatment history, function, pre-existing symptoms and any psychological factors before giving a prognosis.
The issue is not whether six months is ever appropriate. It often is. The issue is whether the expert can explain why it is appropriate in that case.
Six months should not become a habit.
In routine whiplash reporting, six months can become a convenient prognosis. It is long enough to recognise that symptoms may persist beyond the first few weeks, but short enough to keep the claim within a familiar valuation framework. That convenience is exactly why experts should be careful.
A prognosis should not be selected because it is common. It should be selected because it fits the evidence.
If a claimant had early neck pain, limited treatment, gradual improvement, minimal ongoing restriction and no relevant pre-existing history, a six-month prognosis may be entirely reasonable. If another claimant has continuing symptoms, poor sleep, travel anxiety, previous neck pain, delayed rehabilitation or significant functional restriction, the same period may be too simple.
The expert’s task is not to produce a familiar number.
It is to explain the recovery period for this claimant.
The examination date matters.
The timing of the examination can affect the quality of the prognosis.
An examination carried out early may capture symptoms before the recovery pattern is clear. The claimant may still be in the acute phase, treatment may not have started, and the expert may have limited information about progress. In that situation, a prognosis may need to be more cautious or expressed as conditional.
An examination conducted later may provide a clearer picture of recovery. By then, the records may show whether symptoms improved, whether treatment was needed, whether medication changed, whether the claimant returned to work and whether function normalised. However, a later examination can also create its own difficulty because the expert is asked to reconstruct early symptoms from records and history rather than observing the claimant closer to the event. There is no perfect timing in every case.
The right question is whether the examination took place at a point where the expert could give a fair and evidence-based opinion.
The course so far is more important than the calendar.
A prognosis should be based on the claimant’s actual recovery to date, not simply the number of months since the accident.
The expert should consider whether symptoms have improved, whether they remain constant, whether there are flare-ups, whether treatment has helped, whether medication is still required, whether the claimant has returned to work, whether driving or travel has resumed and whether ordinary domestic activity has recovered.
These details matter because two claimants examined at the same point after an accident may have different prognoses.
One may be almost recovered at three months and need only a short further period. Another may still be significantly restricted at the same stage and may require further treatment or review. A third may have physical symptoms that are improving but psychological symptoms that are becoming more prominent.
The calendar tells the expert when the assessment took place however, it does not decide the prognosis.
The report must explain why six months is enough.
If an expert gives a six-month prognosis, the report should explain why.
That does not require a long discussion in every straightforward case, but there should be a visible chain of reasoning. The report should show that the expert considered the mechanism of injury, symptom onset, treatment, medication, examination findings, function and recovery so far.
A bare statement that symptoms “should resolve within six months” is vulnerable if the reasoning is not clear.
The court and the parties need to understand whether the six-month period is based on the claimant’s actual improvement, a standard expectation for soft tissue injury, or a mixture of both. If the opinion is based on assumptions, those assumptions should be identified.
For example, the prognosis may depend on the claimant engaging with physiotherapy, continuing home exercises or having no further injury. If so, the report should say that. A prognosis that hides its assumptions can look more certain than it really is.
A six-month prognosis may be too short.
There are cases where six months is not enough.
The claimant may have persistent symptoms despite treatment, a physically demanding job, delayed rehabilitation, pre-existing vulnerability, pain-related distress, poor sleep, travel anxiety or evidence of slower recovery. The records may show repeated attendances, medication escalation, physiotherapy, occupational difficulty or continuing restriction.
In those cases, the expert should not force the opinion into six months simply because that is a familiar period.
A longer prognosis may be justified, provided the evidence supports it. The expert should explain what factors have delayed recovery and whether ongoing symptoms remain accident related. If psychological symptoms are material, further psychiatric or psychological evidence may be needed. If pain persists beyond the expected period, the expert may need to consider chronic pain development, pre-existing conditions or other causes.
A longer prognosis should not be given casually, or should it be avoided where the evidence justifies it.
A six-month prognosis may be too long.
The opposite problem also arises.
A six-month prognosis may be too generous where the records and examination show early recovery. If the claimant had mild symptoms, minimal treatment, no medication escalation, no work absence, normal function and little ongoing complaint, a six-month period may overstate the injury.
This matters because prognosis affects valuation and settlement.
An expert should not assume that every whiplash or soft tissue injury needs six months to resolve. Often, claimants recover earlier. And if the evidence supports a shorter period, the report should say so.
The expert’s duty is not to produce a claimant-friendly or defendant-friendly duration. It is to give the period that best reflects the evidence.
Pre-existing symptoms must be separated.
The six-month issue becomes more difficult where the claimant had pre-existing neck, back, shoulder or psychological symptoms.
A claimant may have had intermittent neck pain before the accident but no functional restriction. They may have had degenerative findings but no active symptoms. They may have had previous anxiety but were driving and working normally. The accident may then cause a genuine aggravation.
In that situation, a six-month accident-related prognosis may be reasonable, but the report should explain what was pre-existing and what changed after the accident.
Alternatively, the records may show active symptoms before the accident, ongoing treatment or a pattern of flare-ups. In that case, ongoing symptoms after six months may not be accident related. The expert may need to say that the accident caused a temporary aggravation, with later symptoms more likely reflecting the underlying condition.
The question is not whether symptoms exist at six months.
The question is whether the accident remains the cause of them.
Psychological symptoms can alter the timeline.
Whiplash claims are often treated as physical injury claims, but psychological symptoms can change the prognosis.
A claimant may develop travel anxiety, disturbed sleep, low mood, fear of movement or pain-related distress. These symptoms may delay recovery or create functional restriction that outlasts the physical injury. Where that happens, a purely physical six-month prognosis may be incomplete.
The expert should record psychological symptoms where they are relevant but must stay within their expertise. Mild and improving symptoms may be noted within the physical report. More significant, persistent or disputed psychological symptoms may require specialist evidence.
The point is that prognosis should reflect the whole accident-related presentation, not only neck movement or pain scores.
If the claimant’s physical symptoms are improving but travel anxiety remains disabling, the report should not pretend the claim is finished because the neck has recovered.
The danger of template prognosis.
The greatest danger with the 6-month examination rule is that it can encourage template thinking.
A standardised report may ask standardised questions and produce a standardised recovery period. That may be efficient, but efficiency is different to accuracy. A report can look complete while still failing to explain why the claimant’s prognosis has been chosen.
Template prognosis is particularly vulnerable when the records do not fit neatly.
If there is delayed symptom reporting, previous injury, continuing treatment, work absence, psychological symptoms, inconsistent function or poor recovery, the expert must address those factors directly. They should not be absorbed into a standard paragraph.
A prognosis section should feel specific to the claimant.
If it could be copied into any other report, it is not doing enough work.
The expert should be prepared to revise the opinion.
A prognosis given at one point in time may need to change when later evidence becomes available.
If updated records show full recovery earlier than expected, the prognosis may need to be shortened. If symptoms persist despite appropriate treatment, the prognosis may need to be reviewed. If further records reveal pre-existing symptoms, the accident-related period may need to be limited. If psychological symptoms become more prominent, further evidence may be needed.
The expert should not defend a six-month prognosis simply because it was written first.
Expert evidence must remain tied to the evidence, and the evidence may change.
The real rule.
The real rule is not six months.
The real rule is reasoning.
A medico-legal prognosis should be based on the claimant’s actual course, not a generic period. Six months may be right , but it should never be automatic. The expert must consider the records, mechanism, symptoms, treatment, function, pre-existing conditions, psychological factors and progress to date.
Where six months is appropriate, explain why.
Where it is too short, say so.
Where it is too long, say so.
A six-month prognosis is credible only when it belongs to the claimant in front of the expert, rather than to the template behind the report.
