How Long Should You Stay Off Work With Diarrhoea?

If you have diarrhoea, you should generally stay off work until you have been free from diarrhoea and vomiting for at least 48 hours.

This is particularly important when diarrhoea may be caused by an infectious illness such as norovirus or gastroenteritis. You can start feeling better before you have fully passed the period during which you may still spread an infection.

The 48-hour rule is therefore more useful than simply asking, “Do I feel well enough to work?”

There is also a separate question about sickness documentation. If you are off work for 7 calendar days or less, you can generally self-certify your sickness. If your illness continues beyond 7 days, your employer may normally require a fit note following an appropriate healthcare assessment.

So, in practical terms:

Active diarrhoea → stay home.

No diarrhoea or vomiting for 48 hours → you can generally consider returning if you feel well enough.

Off work for more than 7 calendar days → you may need a fit note.

What is the 48-hour rule for diarrhoea?

The NHS advises staying away from work or school until you have had no diarrhoea or vomiting for at least 48 hours.

The reason is infection control.

Many episodes of sudden diarrhoea are caused by infections that can spread easily between people. Returning as soon as symptoms disappear could therefore increase the chance of passing the illness to colleagues, customers or other people.

The 48 hours should be counted from your last episode of diarrhoea or vomiting.

For example

If your last episode of diarrhoea was:

Monday at 7pm

you should generally remain away from work until:

Wednesday at 7pm

provided you have had no further diarrhoea or vomiting.

If symptoms occur again on Tuesday, the 48-hour period would be counted from the latest episode.

Why can’t you return as soon as you feel better?

Feeling better is encouraging, but it is not necessarily the same as being ready to return to work.

Stomach infections can spread through:

• contaminated hands
• shared toilets
• door handles
• bathroom surfaces
• food preparation
• contaminated objects and surfaces.

You might feel almost normal while still being within the recommended exclusion period.

This is why the guidance focuses on time since the last episode of diarrhoea or vomiting, rather than simply asking whether you feel recovered.

How many days should you stay off work with diarrhoea?

There is no universal number of “sick days” because the answer depends on when your symptoms stop.

For an acute stomach illness, the practical rule is:

Your situation	General approach
You currently have diarrhoea	Stay off work
Diarrhoea stopped today	Stay off work for now
24 hours without symptoms	Usually not enough
48 hours without diarrhoea/vomiting	You can generally consider returning if well enough
Diarrhoea returns	Count the 48 hours from the latest episode
Symptoms continue for more than 7 days	Seek medical advice
Sickness absence exceeds 7 calendar days	A fit note may normally be required

This is general UK guidance. Your employer may have additional workplace or infection-control requirements.

What if you only had diarrhoea once?

A single loose bowel movement does not necessarily mean that you have an infectious illness.

For example, a loose stool could occasionally be related to:

• something you ate
• a food intolerance
• medication
• stress
• IBS
• another digestive issue.

However, if you develop repeated diarrhoea, vomiting or other symptoms, treat the situation more cautiously.

If you are unsure whether you are experiencing genuine diarrhoea or whether you may have an infectious illness, it is safer to follow appropriate health advice rather than assuming that you can immediately return to work.

What if you have diarrhoea but no vomiting?

The 48-hour recommendation still applies.

You do not need to have both diarrhoea and vomiting for the advice to be relevant.

If you have ongoing diarrhoea, stay away from work.

Once you have had no diarrhoea or vomiting for at least 48 hours, you can generally consider returning if you are otherwise well enough.

What if your diarrhoea stops after one day?

Even if your symptoms disappear quickly, you should generally wait until you have completed the 48-hour symptom-free period before returning to work when an infectious illness is suspected.

For example:

Monday: diarrhoea
Tuesday: no symptoms
Wednesday: no symptoms
Thursday: 48 hours have passed

The important point is that the clock starts from the last episode, not from when you first became ill.

What if diarrhoea comes back?

If you have another episode after you thought you had recovered, treat that as the latest episode for the purposes of the 48-hour period.

For example:

• Monday: diarrhoea
• Tuesday: no symptoms
• Wednesday: diarrhoea returns
• Thursday: no symptoms
• Friday: no symptoms

You would generally wait until at least 48 hours after the Wednesday episode before considering a return.

If diarrhoea repeatedly stops and starts, it is also worth considering whether there is an underlying cause rather than assuming that you have several separate stomach infections.

What if you still have loose stools after 48 hours?

This depends on what you mean by “loose stools” and why they are happening.

If you are still experiencing genuine diarrhoea, particularly if it is frequent or watery, you should not simply assume that you are ready to return because 48 hours have passed since an earlier episode.

The 48-hour period is intended to be symptom-free.

However, some people have ongoing bowel changes caused by conditions such as IBS, food intolerance or another non-infectious problem.

If your bowel habits remain abnormal, particularly if this is new or persistent, consider speaking to a healthcare professional.

What if you have IBS-related diarrhoea?

IBS creates an important distinction.

Not all diarrhoea is caused by an infection.

People with irritable bowel syndrome (IBS) may experience:

• loose stools
• bowel urgency
• abdominal discomfort
• bloating
• repeated bowel movements
• alternating diarrhoea and constipation.

If your symptoms are caused by a known non-infectious condition, the infection-control reason for staying away from work may not apply in exactly the same way.

However, you still need to consider whether you are well enough to work.

If your usual IBS symptoms suddenly become much worse, change significantly or are accompanied by symptoms such as blood in your stool, severe abdominal pain or unexplained weight loss, seek medical advice rather than automatically assuming that IBS is responsible.

What if stress or anxiety is causing your diarrhoea?

Stress can affect the digestive system and may cause loose stools or an urgent need to use the toilet.

This can be particularly noticeable before:

• important meetings
• presentations
• exams
• travelling
• stressful events
• major changes at work.

If you have an established pattern of stress-related bowel symptoms, this may be different from an infectious stomach illness.

But new or persistent diarrhoea should not automatically be blamed on stress.

If you are unsure about the cause, appropriate medical advice can help.

What if you work with food?

If you work with food, staying away while you have diarrhoea is especially important.

A gastrointestinal infection can potentially contaminate food and surfaces and expose other people to illness.

Food handlers should follow the relevant food-safety and workplace guidance, including the 48-hour symptom-free period where applicable.

Do not return simply because you feel capable of completing your shift.

In a food-handling environment, protecting other people from infection is part of the reason for staying away.

What if you work in healthcare or childcare?

The same basic principle applies, but your workplace may have additional infection-control procedures.

This can be particularly important when working with:

• babies
• young children
• older adults
• hospital patients
• people with weakened immune systems
• other medically vulnerable individuals.

If you work in one of these settings, follow your employer’s infection-control policy in addition to general NHS advice.

What if you work in an office?

An office may seem lower risk than a hospital or restaurant, but infectious diarrhoea can still spread through shared facilities.

Consider:

• communal toilets
• kitchen areas
• taps
• door handles
• shared desks
• equipment
• close contact with colleagues.

Therefore, being able to sit at a desk does not automatically mean you should return while you still have diarrhoea.

If the cause is a known non-infectious condition such as IBS, your circumstances may be different.

Can you work from home while you have diarrhoea?

Working from home can reduce your contact with colleagues, but it does not necessarily mean you should work.

Ask yourself:

• Are you actually well enough to work?
• Are you dehydrated?
• Are you exhausted?
• Are you frequently needing the toilet?
• Could you be experiencing an infectious illness?
• Would working interfere with your recovery?

If you are genuinely ill, taking sick leave may be more appropriate than trying to work from home simply because you can access your laptop.

Your employer’s policy may also determine whether working from home during sickness is appropriate.

What should you do while you are off work?

Use the time to recover and reduce the risk of spreading illness.

Keep drinking fluids

Diarrhoea can cause significant fluid loss.

Drink regularly, and take small sips if nausea makes drinking difficult.

An oral rehydration solution may help replace fluids and salts lost through diarrhoea. A pharmacist can advise whether this is appropriate.

Wash your hands properly

Wash your hands thoroughly with soap and water after using the toilet and before preparing food.

This is particularly important when dealing with infectious diarrhoea.

Avoid preparing food for others

If you may have an infectious stomach illness, avoid preparing food for other people until you have recovered and passed the appropriate symptom-free period.

Clean bathroom surfaces

Regularly clean surfaces that may have been contaminated, particularly:

• toilet seats
• flush handles
• taps
• door handles
• sinks.

What if you feel too weak to work?

Diarrhoea can cause more than bowel symptoms.

Frequent diarrhoea can result in:

• dehydration
• weakness
• dizziness
• fatigue
• difficulty concentrating.

If you are struggling to drink enough fluids or feel significantly unwell, the issue is no longer simply whether you should attend work.

You may need medical advice.

The NHS advises seeking help if you have signs of dehydration, cannot keep fluids down or have other concerning symptoms.

When should you seek medical advice?

A short episode of diarrhoea often settles without medical treatment.

However, you should seek appropriate medical advice if:

• diarrhoea lasts for more than 7 days
• you have blood in your stool
• you cannot keep fluids down
• you have signs of dehydration
• you have severe or persistent abdominal pain
• your symptoms are getting worse
• you have recently travelled and remain unwell
• you have a health condition that makes dehydration or infection more concerning.

If you believe you are experiencing a medical emergency, seek urgent medical help.

What if your diarrhoea lasts more than a week?

At that point, the question changes from “When can I return to work?” to “Why is this diarrhoea continuing?”

The NHS advises contacting NHS 111 if diarrhoea lasts for more than 7 days.

Persistent diarrhoea can have several causes, including:

• ongoing infection
• medication
• food intolerance
• IBS
• coeliac disease
• inflammatory bowel disease
• other digestive conditions.

If your symptoms continue, medical assessment can help determine whether further investigation is needed.

How does sickness certification work?

Staying off work and proving your sickness are two separate issues.

You may need to stay away from work for 48 hours after your diarrhoea or vomiting stops, but that does not automatically mean you need a doctor’s note.

For sickness lasting 7 calendar days or less, employees can generally self-certify.

If your illness continues beyond 7 calendar days, your employer may normally require a fit note following an appropriate healthcare assessment.

So you could potentially be:

Off work for several days without needing a fit note, provided the absence falls within the self-certification period.

Do you need a doctor’s note for diarrhoea?

Not necessarily.

If you are off work for 7 calendar days or less, you can generally self-certify your sickness.

If your absence lasts longer than 7 calendar days, a fit note may normally be required if your employer asks for one.

The official UK term is fit note, rather than “sick note”.

A fit note is intended to provide information about how a health condition affects your ability to work.

If you need legitimate medical documentation for a genuine illness, first check exactly what your employer requires.

If it specifically asks for a fit note, you need the appropriate healthcare assessment and documentation.

If it requires another form of legitimate medical evidence, make sure you obtain the correct type of document.

Where appropriate to the documentation being requested, DoctorsNotes.co.uk can help you explore legitimate medical documentation for genuine health circumstances.

The documentation should accurately reflect the illness and should never be used to fabricate or exaggerate sickness.

What if your employer wants proof immediately?

For a short sickness absence, you can generally self-certify for the first 7 calendar days.

However, employers can have specific procedures for reporting sickness, so follow your workplace policy.

If your employer asks for a “doctor’s note”, clarify whether it means:

• self-certification
• a fit note
• a doctor’s letter
• another form of medical evidence.

These documents are not automatically interchangeable.

Knowing exactly what your employer needs can prevent you from obtaining unnecessary or inappropriate paperwork.

Can you return to work before a fit note ends?

Yes, potentially.

If you recover sooner than expected, you do not necessarily have to remain away from work until the final date written on a fit note.

However, diarrhoea creates an additional consideration.

Even if you feel better, you should follow the recommended 48-hour period without diarrhoea or vomiting when an infectious illness is suspected.

You should also be well enough to perform your job safely.

What if your job requires you to travel?

A long commute can make diarrhoea particularly difficult.

If you have:

• sudden bowel urgency
• frequent diarrhoea
• abdominal cramps
• dehydration
• weakness

travelling to work may not be practical or safe.

If your symptoms are severe enough to prevent you from carrying out your normal duties, explain this to your employer and seek appropriate medical advice if necessary.

Do not put yourself at risk simply to avoid taking a sick day.

What if you have an important shift?

An important shift does not remove the infection-control considerations.

If you have active diarrhoea and the cause may be infectious, attending work could expose colleagues or customers to illness.

This is especially important in jobs involving:

• food
• healthcare
• childcare
• social care
• close contact with the public.

If you are genuinely ill, follow your employer’s sickness-reporting procedure and explain that you are unable to work.

A practical example

Imagine you develop diarrhoea on Monday morning.

Monday

You have repeated diarrhoea and stay home.

Tuesday

Your symptoms continue.

You remain off work and focus on fluids and recovery.

Wednesday

Your last episode occurs at 9am.

You now begin counting the 48-hour symptom-free period.

Thursday

You have no further diarrhoea or vomiting.

You remain off work because 48 hours have not yet passed.

Friday at 9am

You have now been symptom-free for 48 hours.

If you feel well enough and your workplace has no additional restrictions, you can generally consider returning.

If diarrhoea occurs again on Thursday, however, the 48-hour period would need to be counted from that latest episode.

Diarrhoea and work: 7 things to remember

1. Stay home while you have active diarrhoea.

2. Wait at least 48 hours after your last episode of diarrhoea or vomiting before returning when an infectious illness is suspected.

3. The 48-hour period starts again if symptoms return.

4. Food handlers and people working with vulnerable individuals should follow additional workplace guidance where applicable.

5. Drink enough fluids and watch for signs of dehydration.

6. If diarrhoea lasts more than 7 days or you develop concerning symptoms, seek medical advice.

7. A fit note is not normally required for the first 7 calendar days of sickness; you can generally self-certify.

Related Doctor’s Note:

Doctor Note for Constipation
Doctor Note for Stomach Virus 
Doctor Note for Gasteroenteritis

Frequently Asked Questions

How long should I stay off work with diarrhoea?

The NHS recommends staying away from work until you have had no diarrhoea or vomiting for at least 48 hours.

Can I go back to work 24 hours after diarrhoea stops?

Generally, no. You should normally wait until you have been free from diarrhoea and vomiting for at least 48 hours.

What if I feel completely better after one day?

You should still generally complete the 48-hour symptom-free period if the illness may be infectious.

Does the 48-hour rule apply if I only have diarrhoea?

Yes. You do not need to have vomiting for the recommendation to apply.

What if I have IBS?

If your diarrhoea is caused by a known non-infectious condition such as IBS, the infection-control advice may not apply in exactly the same way. However, you still need to consider whether you are fit enough to work.

Can I work from home with diarrhoea?

You may be able to work from home if you are well enough and your employer agrees, but working remotely is not a substitute for taking sick leave when you are genuinely unwell.

Do I need a sick note for two days off with diarrhoea?

Usually not. For sickness lasting 7 calendar days or less, you can generally self-certify.

When do I need a fit note?

If your sickness absence lasts longer than 7 calendar days, your employer may normally require a fit note following an appropriate healthcare assessment.

Can a doctor sign me off for diarrhoea?

Yes, if a healthcare professional assesses that your condition affects your ability to work and a fit note is appropriate.

What if my employer asks for a doctor’s note after one day?

Check your employer’s sickness policy and clarify exactly what documentation it requires. For a short absence, self-certification is generally the normal UK process.

Can I return to work if I still have loose stools?

If you are still experiencing genuine diarrhoea, you should generally not return while symptoms are ongoing. If the loose stools are part of a known non-infectious condition, discuss your individual circumstances with a healthcare professional if necessary.

What if diarrhoea lasts more than 7 days?

The NHS advises contacting NHS 111. Persistent diarrhoea can have several possible causes and may need medical assessment.

When should diarrhoea be treated as urgent?

Seek urgent medical help for serious symptoms such as severe abdominal pain, significant dehydration, confusion, vomiting blood, difficulty breathing or other symptoms suggesting a medical emergency.

Conclusion

For most people with suspected infectious diarrhoea, the answer is straightforward:

Stay off work while you have diarrhoea and wait until you have been free from diarrhoea and vomiting for at least 48 hours before returning.

That 48-hour period is about reducing the risk of spreading infection. It is separate from the rules around sickness documentation.

If you are off work for 7 calendar days or less, you can generally self-certify.

If your illness continues beyond 7 calendar days, your employer may normally require a fit note, following an appropriate healthcare assessment.

And if your diarrhoea keeps returning, lasts longer than expected or comes with symptoms such as blood in the stool, severe pain or dehydration, the priority should shift from workplace paperwork to finding out what is causing the problem.

If you need legitimate medical documentation for a genuine illness, check whether your employer requires a fit note or another specific type of evidence before requesting documentation. Where appropriate, DoctorsNotes.co.uk can help you explore the medical-documentation option that matches your genuine circumstances.

The goal is not simply to get back to work as quickly as possible. It is to recover properly, avoid passing an illness to other people and return when you are genuinely ready to do so.