Vomiting in adults
Vomiting in adults
Overview
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Nausea and vomiting in adults isn’t usually a sign of anything serious. It tends to only last 1 or 2 days.
Vomiting is the body’s way of getting rid of harmful substances from the stomach, or it may be a reaction to something that has irritated the gut.
One of the most common causes of vomiting in adults is gastroenteritis. This is an infection of the gut usually caused by bacteria or a virus. It’ll normally improve within a few days.
Vomiting can occasionally be a sign of something more serious, such as appendicitis.
There is a separate page on vomiting in children and babies. If you’re vomiting after a head injury, there are separate pages on severe head injury and minor head injury.
Vomiting self-help guide
Advice for people aged 5 years or more experiencing vomiting.
Complete our self-help guide to check your symptoms and find out what to do next.
Common Symptoms
Symptom information is not available for this condition yet.
Emergency Warning Signs
Phone 999 or go to the hospital emergency department if:
You are vomiting and you also have:
- sudden, severe abdominal (tummy) pain
- severe chest pain
- blood in your vomit or what looks like coffee granules
- green or yellow-green vomit
- a stiff neck and high temperature (fever)
- a sudden, severe headache that's unlike any headache you've had before
- you swallowed something poisonous, or you think you may have
- a stiff neck and pain when looking at bright lights
Speak to your doctor if:
- you've been vomiting repeatedly for more than a day or two
- you're unable to keep down any fluids because you're vomiting repeatedly
- you have signs of severe dehydration, such as confusion, a rapid heartbeat, sunken eyes and passing little or no urine
- you've lost a lot of weight since you became ill
- you experience episodes of vomiting frequently
- you're worried about your vomiting and are feeling very unwell
- you have diabetes and have been vomiting a lot, particularly if you take insulin as it can affect your blood sugar level
⚠️ This symptom list is for educational purposes. Having these symptoms does not mean you have this condition. See a doctor for proper diagnosis.
Medicines Commonly Used
⚠️ These medicines are commonly used for confirmed diagnoses of this condition. This is NOT a recommendation or prescription. Treatment must be determined by your doctor.
No medicines have been linked to this condition yet.
When to See a Doctor
Phone 999 or go to the hospital emergency department if:
You are vomiting and you also have:
- sudden, severe abdominal (tummy) pain
- severe chest pain
- blood in your vomit or what looks like coffee granules
- green or yellow-green vomit
- a stiff neck and high temperature (fever)
- a sudden, severe headache that's unlike any headache you've had before
- you swallowed something poisonous, or you think you may have
- a stiff neck and pain when looking at bright lights
Speak to your doctor if:
- you've been vomiting repeatedly for more than a day or two
- you're unable to keep down any fluids because you're vomiting repeatedly
- you have signs of severe dehydration, such as confusion, a rapid heartbeat, sunken eyes and passing little or no urine
- you've lost a lot of weight since you became ill
- you experience episodes of vomiting frequently
- you're worried about your vomiting and are feeling very unwell
- you have diabetes and have been vomiting a lot, particularly if you take insulin as it can affect your blood sugar level
Causes
Common causes of vomiting in adults
Gastroenteritis
If you have diarrhoea as well as vomiting, it’s likely you have gastroenteritis. This is one of the most common causes of vomiting in adults.
It’s often caused by:
- a virus, like norovirus
- food poisoning caused by bacteria in contaminated food
Your immune system will usually fight off the infection after a few days.
Pregnancy
Pregnant women often experience nausea and vomiting, particularly during the early stages of pregnancy. This is often called morning sickness but it can happen at any time of the day.
Migraines
If you have recurrent episodes of vomiting along with intense, throbbing headaches that last for a few hours to days at a time, you may be experiencing migraines.
Pain relief, such as paracetamol and ibuprofen, can sometimes help control the pain. Your GP can prescribe anti-sickness medicine to help prevent vomiting.
Labyrinthitis
If you also feel dizzy, or feel like you’re spinning (vertigo), you may have an inner ear infection called labyrinthitis.
Labyrinthitis will usually improve over a few days. Your GP can prescribe medication to reduce your symptoms if needed.
Motion sickness
Nausea and vomiting when travelling could be a sign of motion sickness.
You can try:
- looking at the horizon
- distracting yourself by listening to music
Appendicitis
As well as vomiting, appendicitis can cause severe pain in your abdomen (tummy). You should phone 999 for an ambulance if you experience pain that suddenly becomes worse and spreads across your abdomen. These are signs that you appendix may have burst.
If you have appendicitis, you will often need surgery to remove your appendix.
Other causes of vomiting in adults
Vomiting in adults can also be caused by a number of other things, including:
- certain medicines, such as antibiotics and opioid painkillers
- drinking too much alcohol
- kidney infections and kidney stones
- a blockage in your bowel, which may be caused by a hernia or gallstones
- chemotherapy or radiotherapy
- acute cholecystitis (inflammation of the gallbladder)
Looking after yourself at home
Mostly, you can take care of yourself at home until you feel better.
Do
- keep taking small sips of water frequently so you don’t become dehydrated
- drink a sweet drink such as fruit juice to replace lost sugar, unless it make you feel sick
- eat salty snacks, such as crisps, which can help replace lost salt
- try ginger (in supplements, biscuits or tea) – but check with your pharmacist or GP before using ginger supplements
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