Causes of vomiting are varied and include food-borne illnesses (food poisoning), infections, problems with the brain and central nervous system, and systemic (body-wide) diseases. Some illnesses will cause nausea and vomiting, even though there is no direct involvement of the stomach or gastrointestinal tract. Examples can include pneumonia, heart attack, and sepsis. Vomiting may be a side effect of medications, including drugs used in cancer chemotherapy, as well as a side effect of radiation therapy.
Other causes of vomiting:
- Bowel Obstruction
- Noxious Stimuli (Such As Emotional Shock, Pain, Certain Smells or Sounds)
- Pyloric Stenosis
- Radiation Therapy