Stomach flu in Oslo
Stomach flu can cause sudden nausea, vomiting, diarrhoea and abdominal cramps. It is often caused by norovirus or other viruses and usually resolves on its own within a few days.
At Easy Clinic in Majorstuen, you can book a doctor’s appointment if your symptoms are severe, do not improve as expected or you develop signs of dehydration.
For a life-threatening illness or severe symptoms, call 113. If you need urgent medical help that cannot wait, contact the public out-of-hours medical service on 116 117.
Appointment booking
At Easy Clinic in Majorstuen, you can book a doctor’s appointment if your symptoms are severe, do not improve as expected or you develop signs of dehydration.
For a life-threatening illness or severe symptoms, call 113. If you need urgent medical help that cannot wait, contact the public out-of-hours medical service on 116 117.
Appointment booking

What is stomach flu?
Stomach flu is a contagious infection of the stomach and intestines. Norovirus is a common cause and can affect people of all ages.
Symptoms often begin suddenly and may include nausea, vomiting, diarrhoea and abdominal pain. Some people also develop a mild fever, headache or body aches.
In otherwise healthy people, the illness usually resolves within one to three days.
Symptoms often begin suddenly and may include nausea, vomiting, diarrhoea and abdominal pain. Some people also develop a mild fever, headache or body aches.
In otherwise healthy people, the illness usually resolves within one to three days.
Common symptoms of stomach flu
Stomach flu may cause:
The main concern with frequent vomiting and diarrhoea is that the body may lose too much fluid.
What can you do yourself?
The most important thing is to drink enough fluids. If you are vomiting, it may be easier to drink small amounts frequently rather than a large amount at once.
You can:
You can:
Norovirus spreads easily. Washing your hands with soap and running water is more important than using hand sanitiser alone, because alcohol-based hand sanitiser has limited effectiveness against norovirus.
When should you contact a doctor?
Contact a doctor if:
Young children, older people and those with a serious underlying condition may become dehydrated more quickly and may therefore need an earlier medical assessment.
Severe symptoms
Seek urgent medical help if you develop:
Contact the public out-of-hours medical service on 116 117 if the problem cannot wait. Call 113 if the condition appears life-threatening.
Examination and treatment
The doctor will ask when your symptoms started, how often you are vomiting or having diarrhoea, and whether you have a fever, abdominal pain or blood in your stool.
If necessary, the doctor may:
If necessary, the doctor may:
Most cases of stomach flu are caused by viruses and resolve without antibiotics.
Doctor for stomach flu in Majorstuen
At Easy Clinic, you can book a doctor’s appointment if you have severe or persistent vomiting, diarrhoea or other symptoms of stomach flu.
We are centrally located in Majorstuen, Oslo. The doctor will assess whether you need treatment, tests, a sick note or further follow-up.
Book a doctor’s appointment
We are centrally located in Majorstuen, Oslo. The doctor will assess whether you need treatment, tests, a sick note or further follow-up.
Book a doctor’s appointment
Frequently asked questions about stomach flu in Oslo
How long does stomach flu last?
In otherwise healthy people, stomach flu usually resolves within one to three days. Contact a doctor if the symptoms last longer, become worse or you develop signs of dehydration.
What should I drink if I have vomiting and diarrhoea?
Drink small amounts frequently. Water or an oral rehydration solution may be appropriate. Small sips are often easier to keep down than large amounts.
How do I know if I am dehydrated?
Severe thirst, a dry mouth, reduced or dark urine, dizziness and marked weakness may be signs of dehydration.
Is stomach flu contagious?
Yes. Norovirus and other viruses that cause stomach flu can spread very easily. Thorough handwashing with soap and water helps reduce transmission.
Can I book a doctor’s appointment for stomach flu?
Yes. You can book an appointment at Easy Clinic if your symptoms are severe, last longer than expected or you would like a medical assessment.
