Digestive tract
Causes in the digestive tract

Gastritis (inflammation of the gastric wall)
Gastroenteritis
Gastroesophageal reflux disease
Celiac disease
Non-celiac gluten sensitivity
Pyloric stenosis (in babies, this typically causes a very forceful "projectile vomiting" and is an indication for urgent surgery)
Bowel obstruction
Overeating (stomach too full)
Acute abdomen and/or peritonitis
Ileus
Food allergies (often in conjunction with hives or swelling)
Cholecystitis, pancreatitis, appendicitis, hepatitis
Food poisoning
In children, it can be caused by an allergic reaction to cows milk proteins (Milk allergy or lactose intolerance)

Sensory system and brain
Causes in the sensory system:
Movement leading to motion sickness (which is caused by overstimulation of the labyrinthine canals of the ear)
Ménières disease
VertigoCauses in the brain:
Concussion
Cerebral hemorrhage
Migraine
Brain tumors, which can cause the chemoreceptors to malfunction
Benign intracranial hypertension and hydrocephalusMetabolic disturbances (these may irritate both the stomach and the parts of the brain that coordinate vomiting):
Hypercalcemia (high calcium levels)
Uremia (urea accumulation, usually due to kidney failure)
Adrenal insufficiency
Hypoglycemia
HyperglycemiaPregnancy:
Hyperemesis, morning sicknessDrug reaction (vomiting may occur as an acute somatic response to):
Alcohol, which can be partially oxidized into acetaldehyde that causes the symptoms of hangover, including nausea, vomiting, shortness of breath, and fast heart rate. Opioids
Selective serotonin reuptake inhibitors
Many chemotherapy drugs
Some entheogens (such as peyote or ayahuasca)Illness (sometimes colloquially known as "stomach flu"—a broad name that refers to gastric inflammation caused by a range of viruses and bacteria):
Norovirus (formerly Norwalk virus or Norwalk agent)
Swine influenzaPsychiatric/behavioral:

Bulimia nervosa
Purging disorder

Emetics
An emetic, such as syrup of ipecac, is a substance that induces vomiting when administered orally or by injection. An emetic is used medically when a substance has been ingested and must be expelled from the body immediately.
Generalized essential telangiectasia (also known as "General essential telangiectasia") is characterized by the dilation of veins and capillaries over a large segment of the body without preceding or coexisting lesions, telengiectases that may be distributed over the entire body or be localized to some large area such as the legs, arms, or trunk. : 589, 844

See also
Skin lesion
List of cutaneous conditions

References


== External links ==