Differential Diagnosis for Persistent Vomiting
- Single Most Likely Diagnosis
- Gastroenteritis: This is often the most common cause of persistent vomiting, especially in children and young adults, due to viral or bacterial infections.
- Other Likely Diagnoses
- Food poisoning: Similar to gastroenteritis, food poisoning from consuming contaminated food can lead to persistent vomiting.
- Gastritis: Inflammation of the stomach lining can cause persistent vomiting, often due to infection, medication, or excessive alcohol consumption.
- Intestinal obstruction: A blockage in the intestines can lead to severe vomiting, which is persistent and may be accompanied by abdominal pain and constipation.
- Pregnancy: Morning sickness is a common symptom of early pregnancy, which can manifest as persistent vomiting.
- Do Not Miss Diagnoses
- Appendicitis: Although abdominal pain is the primary symptom, persistent vomiting can occur, especially if the appendix ruptures.
- Pancreatitis: Inflammation of the pancreas can cause severe abdominal pain and persistent vomiting.
- Kidney stones: Severe pain and persistent vomiting can be symptoms of kidney stones, particularly if they cause an obstruction.
- Meningitis: In severe cases, meningitis can cause persistent vomiting, especially in children, along with symptoms like headache, fever, and stiff neck.
- Rare Diagnoses
- Brain tumors: Increased intracranial pressure from brain tumors can cause persistent vomiting, often accompanied by headache and visual disturbances.
- Cyclic vomiting syndrome: A rare condition characterized by recurring episodes of severe vomiting, often without an identifiable cause.
- Addison's disease: A rare endocrine disorder where the adrenal glands do not produce enough cortisol and aldosterone, leading to symptoms like persistent vomiting, weight loss, and fatigue.
- Porphyria: A group of rare genetic disorders that can cause persistent vomiting, abdominal pain, and neurological symptoms due to the accumulation of porphyrins.