What Are the Important Causes of Nausea?

Important Causes of Nausea
Important Causes of Nausea

Nausea, which is one of the most common complaints that can be experienced by everyone in the society, can be caused by more innocent reasons such as eating too much, driving, reaction to unpleasant smells and images, or cold, or it can also be a harbinger of serious diseases. Nausea; ulcers, gastrointestinal infections, sudden onset gastritis, intestinal obstruction, digestive system disorders such as appendicitis, stress, pregnancy, vertigo, migraine, blood pressure problems and even brain tumor can point to tables. From the Department of Gastroenterology at Memorial Ataşehir Hospital, Uz. Dr. Şule Namlı Koç gave information about the causes of nausea.

Nausea is not a disease, it is a reaction or a symptom of different diseases that occur as a result of the triggering of mechanisms in the body caused by different reasons. Various diseases that can cause nausea and require attention are listed as follows:

food poisoning

One of the first symptoms of food poisoning is nausea. To complain of nausea in food poisoning; Complaints such as vomiting, diarrhea, fever, abdominal pain and cramps can also be added.


Gastritis, which can be defined as inflammation of the stomach lining, is usually caused by the helicobacter pylori microbe. Gastritis may appear suddenly (acute gastritis) or it may show symptoms gradually over time (chronic gastritis). Nausea is very common among the symptoms seen in gastritis patients. Vomiting along with nausea, pain and bloating in the upper abdomen are among the accompanying complaints.


Ulcer, which is defined as the destruction of stomach or duodenum due to various reasons, causes tissue loss, manifests itself with different symptoms. The most common ulcer symptom is pain that occurs in the upper part of the abdomen, but it can also cause complaints such as nausea, vomiting and loss of appetite.

Intestinal infections

Nausea is one of the most common symptoms of intestinal infections. In addition to nausea, symptoms such as abdominal pain, bloody diarrhea and fever are among the complaints of intestinal infection.

Gallbladder diseases and gallbladder surgeries

Gallbladder diseases; It can be experienced in different ways such as acute inflammation of the gallbladder, biliary tract injuries and stenosis, biliary tract cysts, gallbladder stones, gallbladder cancer. One of the common complaints in these diseases is nausea or vomiting. Nausea and vomiting complaints may continue after surgery in patients undergoing surgical treatment for gallbladder diseases.

gastroesophageal reflux

The most common symptom of gastroesophageal reflux disease, which is caused by the reflux of stomach contents from the stomach to the esophagus due to different reasons, is the burning sensation spreading from the stomach to the throat. The burning sensation can be seen more after meals or at night while lying down. There may be chest pain, difficulty in swallowing, feeling of lump in the throat, nausea and vomiting.

Intestinal obstruction

Intestinal obstruction is one of the life-threatening diseases if left untreated. In addition to symptoms such as sudden and severe abdominal pain, swelling in the abdomen, inability to pass gas and stool, complaints such as nausea and vomiting can be seen.

Cancer and cancer treatment

Nausea can be a sign of cancer. Especially in digestive system cancers, symptoms such as indigestion and bloating can be experienced, as well as complaints such as nausea, vomiting, loss of appetite, and weight loss. Nausea complaints can also be experienced after cancer treatment or cancer treatment. Sudden nausea and vomiting may occur during chemotherapy treatment. Nausea and vomiting complaints may occur during chemotherapy as well as after it.

Vertigo (Dizziness)

Patients may experience vertigo, ie dizziness, due to different reasons. In the case of severe vertigo, the person is usually unable to move and the first complaints are nausea and vomiting.

ear infection

Ear infections are usually manifested by severe ear pain. However, complaints such as nausea and dizziness can be added to ear pain in inner ear infections.

Brain trauma and brain tumor

Disorders such as head trauma or brain tumor may show different symptoms depending on the form of the disease. In brain trauma or brain tumors, complaints such as severe headache, nausea, vomiting, speech disorder, weakness in the arms or legs, and visual disturbances can be experienced.


The most typical symptom of inflammation of appendicitis, which is supposed to help regulate the defense mechanism of the intestine and immunity, is right inguinal pain. However, along with the pain, complaints such as nausea, vomiting, and indigestion are also experienced.


The most prominent feature of migraine attacks is a throbbing headache. However, this headache; Complaints such as nausea, vomiting, sensitivity to light and sound are also added.

Heart attack

During a heart attack, nausea and vomiting can be experienced, along with dizziness, as insufficient oxygen can be obtained.

Kidney and urinary tract diseases

Kidney stones or urinary tract infections can be manifested by complaints such as nausea and vomiting as well as severe pain.

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