What causes vomiting?


Nausea and vomiting can be some of the most unpleasant experiences in life. Vomiting is an uneasiness of the stomach and could be an indicator that something is not right, or you should get checked out by a doctor.

So, what are the causes of vomiting?

There are three usual phases of vomiting. Firstly, you will suffer from nausea, sweating and salivation. This means your parasympathetic nervous system will coat your teeth with saliva to protect them from stomach acids. It also leads to an increased heart rate.

Unlike most illnesses, vomiting or nausea is not a cause but a symptom for conditions such as:

  • Seasickness or motion sickness
  • Pregnancy
  • Intense pain (including period pain)
  • Overeating
  • Migraines
  • Food poisoning
  • Heat attack
  • Infections (like the stomach flu)
  • Medicated-induced vomiting
  • Brain injury or contusion (like concussions)
  • Emotional stress
  • Reaction to smells
  • Gallbladder disease
  • Brain tumour
  • Ingestions of toxins or excessive consumption of alcohol
  • Ulcers

Is vomiting dangerous?

Experts from our team say vomiting is usually harmless, but in excess, it can lead to dehydration. So, if you’re vomiting, make sure you keep hydrated by drinking water or sucking on hydrating icy poles. If you can’t keep anything down, seek medical advice and you might be prescribed some medication that can help relieve vomiting and nausea. Vomiting is also a sign that something isn’t right, so monitor for other symptoms and consult a doctor for a diagnosis.


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