Sick Leave for Burnout: How Long, Why It Gets Renewed, and What It Actually Changes

Sick leave is the least prepared moment in stories of work exhaustion. Almost everything written on the subject covers what comes before — the signs, prevention, the stages. On the day leave is certified, the reader is left with a piece of paper, an employer to inform, and empty time they did not choose.

This article describes what happens from that day on. It does not say whether you should be off work: that decision belongs to a doctor who examines you, and to nobody else.

Who certifies it, and who does not

Sick leave is certified by a doctor — usually your family doctor, sometimes a hospital physician or a psychiatrist. It is a medical prescription, like any other.

The occupational health doctor does not certify sick leave. This confusion is widespread, and it deprives many people of a useful ally for the wrong reason. The occupational health doctor has other levers — workstation adjustments, restrictions, formal opinions, alerts to the employer about working conditions — and one decisive characteristic in this kind of situation: they are bound by medical confidentiality, exactly like your family doctor. They pass on neither what you tell them nor a diagnosis. What they may pass on are fitness conclusions or proposed adjustments.

Many employees avoid them because they believe them to be "on the company's side" — often because the company funds the service. Medical confidentiality does not bend according to who pays. That is worth knowing, because it changes what you can do with that appointment.

Why the first certificate is almost always short

A first certificate in this context is frequently issued for a brief period — a few days, one or two weeks. That brevity is surprising, and it is regularly read as a signal: "so it isn't that serious."

That is not what it means. A short period allows the doctor to see you again soon, which is exactly what any physician wants in a situation whose course they cannot yet know. Somebody's state three days into leave says almost nothing about their state three weeks in. The first certificate is a measurement point, not a prognosis.

There is a second, less medical reason: the first days of leave rarely resemble what follows. Many people describe a collapse — fifteen hours of sleep, an inability to leave the house, sometimes a form of relief. Others describe the opposite: agitation, an inability to stop, a list of household tasks demolished in three days. Neither tells you anything about what comes next.

Renewal is not a failure

This is the point that produces the most unnecessary distress.

The most common course, in work-related exhaustion, is a succession of renewals. The person arrives at the consultation believing they should be better, finds they are not, and reads the new renewal as a worsening — or as proof of their own weakness.

Something else is happening. Work exhaustion builds over months, often years, by accumulation. What forms slowly does not undo quickly, and certainly not on a schedule tied to the length of an administrative certificate. The length of leave follows the person's state; it does not command it.

One thing deserves saying plainly: counting the days, fixing a return date, calculating how much longer you can "hold out" is an extremely common mechanism — and it is precisely the mode of functioning that produced the exhaustion. Trying to control a calendar you do not control is an additional load.

What actually changes

The paperwork obligations remain. Certified leave involves sending the required documents, within set deadlines, to your employer and to the health insurance body. Those deadlines exist, they are short, and missing them affects payment. They are the only steps that must be taken on day one, including on a day when you have energy for nothing. The precise rules — deadlines, benefit calculation, waiting periods, any top-up provided by a collective agreement — are legal matters that change: check them with the health insurance body, HR, an employee representative or official sources, never with a blog article. Contact with the employer becomes a grey area. During leave, there is no work. That sounds obvious and almost never holds in practice: messages keep arriving, colleagues need "just one thing," a file needs a password. Every answer given is a partial return, and it costs more than it looks — not in time, but because it reopens mental access to work, which is exactly what the leave is meant to interrupt.

This is better settled once than message by message: an auto-reply, a designated contact for emergencies, and a work phone put away somewhere. The decision taken once costs infinitely less than the same decision taken thirty times.

Guilt arrives around week two. It is so regular that it is better expected: the idea that the team is covering, that the job runs without you, that you are "taking advantage." That is a thought, not information about reality. It appears all the more strongly where engagement in the work was high — which describes nearly everyone affected by work exhaustion.

The pre-return consultation: the most underused lever

There is one appointment very few people request, although it is designed for exactly this situation: the pre-return consultation with the occupational health doctor.

Its three important features:

• it takes place during leave, not after;
• it can be requested by the employee, without going through the employer;
• it is covered by medical confidentiality.

Its purpose is simple: to prepare the return before it happens. Adjusted hours, modified tasks, a different post, a phased return — all of that is built, and it is built badly in the rush of the last day of leave. An unprepared return is the main factor in a failed return, and a failed return is the main factor in further leave.

Access conditions and deadlines are set by employment law and evolve: check them with the occupational health service you are covered by, whose details usually appear on your payslip or can be obtained from employee representatives.

What is worth recording during leave

Long leave produces a fog effect: weeks resemble each other, and two months later it becomes very hard to say what has improved and what has not moved. That is a practical problem, because it is precisely the information your doctor needs, and the information you will need in order to decide about returning.

Three lines a day are enough: time to bed and time up, what was done during the day, and what was impossible. No commentary, no judgement. After six weeks, the series says something memory does not.

Likewise, if the leave follows a degraded work situation, the facts that preceded it are worth recording while they can still be dated — who, when, what, with what effect. ScanMyJob does exactly that: it puts professional facts in a dated series without concluding anything on your behalf. The published examples show what that looks like.

Three things this article does not do

It does not tell you what state you are in. Neither what applies to you nor what does not. That assessment requires an examination, it belongs to a doctor, and no amount of reading replaces it. It does not state the applicable law. Durations, filing deadlines, benefit conditions and renewal rules depend on texts that evolve and on your particular situation — and they are country-specific. Check them with your health insurance body, official sources, an employee representative or a lawyer. It does not recommend waiting. If your sleep, your eating or your general state have durably changed, or if dark thoughts appear, that is said to a doctor without delay. Emergency services and crisis lines exist for this, and a first contact never needs to be justified.