Nausea on an empty stomach is painful sensations in the epigastric region, oral cavity and pharynx that occur on an empty stomach with subthreshold excitation of the vomiting center. Nausea can be observed both with pathologies of the gastrointestinal tract, and as a result of toxicosis of pregnant women, endogenous intoxication syndrome, and neurological disorders. To detect the causes of nausea, ultrasound, endoscopy, pH-metry, laboratory blood and stool tests are prescribed, women are recommended a gynecological examination. In order to relieve discomfort, herbal teas, prokinetics, sedatives, antacids are used.
Nausea on an empty stomach usually indicates the presence of an organic or functional pathology of the digestive system, may indicate endotoxicosis, neurological disorders. The most common physiological causes of nausea include taking vitamin complexes on an empty stomach. More often, unpleasant sensations develop after the use of ascorbic acid, B vitamins, quercetin. The symptom is a common side effect of oral iron preparations.
The presence of nausea on an empty stomach during pregnancy is associated with early toxicosis, which is determined in 60% of women, starting from 5-6 weeks. The appearance of discomfort in the morning has several reasons: a change in the concentration of sex hormones in the blood, irritation of the nerve endings of the body of the uterus due to the attachment of a fetal egg, a violation of the immunological status of a woman. Discomfort is accompanied by salivation, aversion to food, weakness, dizziness. Nausea usually precedes vomiting, the frequency of which correlates with the severity of toxicosis.
Unpleasant symptoms are more often caused by hyperacid states, when an excess of free hydrochloric acid irritates the gastric mucosa, causing pathological impulses from the nerve receptors of the organ. Nausea is associated not only with organic diseases of the stomach, but also with a functional variant of dyspepsia. The symptom is combined with abdominal pain of various localization and intensity, stool instability. Often, nausea on an empty stomach develops with the following pathologies:
Nausea on an empty stomach is often one of the first symptoms of helminthiases, protozoal infections, especially in children. Irritation of the vomiting center occurs due to damage to the mucous membrane of the digestive tract, as well as under the influence of toxic metabolic products of helminths that accumulate in the body. Hypersensitization to parasite antigens plays a significant role. Nausea is most often experienced by patients with infectious diseases such as:
Nausea on an empty stomach is caused by the flow of aggressive stomach contents into the lower esophagus in a horizontal position. Hydrochloric acid is an additional irritant for the affected mucosa. The symptom is usually combined with sour belching, burning behind the sternum. Patients complain of swallowing disorders, sharp retrosternal pain after eating. With a massive organic lesion of the wall of the esophagus, bleeding is possible, in which streaks of scarlet blood are present in the vomit.
Nausea on an empty stomach with migraine is of central origin and is associated with the spread of excitation from the pathological focus to the vomiting center of the medulla oblongata. The symptom occurs in the precursor stage, combined with weakness, drowsiness, yawning. During the peak period, patients experience sharp unbearable pain in one half of the head, more often in the frontal, temporal zone. The pain syndrome is aggravated by the action of bright light, loud sounds, nausea and vomiting often develop at the height of the pain. The duration of the attack ranges from 4 hours to several days.
In the syndrome of endotoxicosis, the development of nausea is associated with direct irritation of the trigger zone in the region of the fourth ventricle of the brain by toxic substances. Unpleasant sensations are formed against the background of a general severe condition caused by damage to other nervous structures and functional disorders of the internal organs. The symptom is observed in various chronic liver diseases (hepatitis, fatty degeneration), which lead to a decrease in its detoxification function.
Nausea on an empty stomach is often noted by patients with chronic renal failure and uremia, in which the body is poisoned by protein metabolism products that are delayed due to impaired excretory function. The manifestation is combined with constant thirst, dry mouth, loss of appetite, tremor of the fingers. The skin looks very pale with a grayish tint, itchy skin bothers. Nausea on an empty stomach becomes a consequence of cancer intoxication when metabolic products of malignant cells enter the general bloodstream.
The appearance of nausea on an empty stomach is typical for acute diseases that require immediate medical attention. Discomfort sensations are formed in various ways: by direct action on the trigger zone of the vomiting center in the medulla oblongata, by reflex mechanisms when visceral receptors or nerve endings in the serous membranes are stimulated. These diseases are characterized by severe or extremely severe general condition. Nausea occurs in pathologies such as:
The appearance of nausea on an empty stomach is due to various pathologies of both the digestive tract and other body systems. Therefore, a comprehensive examination prescribed by a gastroenterologist includes a wide range of instrumental methods and laboratory tests. First, the state of the gastrointestinal tract is studied, then other organs are examined. The most valuable in terms of diagnostics are:
All women of reproductive age with complaints of morning sickness are prescribed a consultation with a gynecologist with the delivery of a specific analysis for hormones to confirm or deny the presence of pregnancy. When nausea is combined on an empty stomach with intense headaches, a neurological examination is recommended. In difficult cases, consultations of other specialists may be required to verify the diagnosis.
With complaints of nausea, a comprehensive gastroenterological examination is indicated.
If unpleasant symptoms are caused by taking medications, it is enough to change the time of taking medications or take them after a small snack. In severe intolerance to pharmaceuticals, doctors recommend parenteral methods of administration. Non-intense nausea in pregnant women, which does not violate or slightly disrupt the diet, does not require correction. A woman is recommended frequent fractional meals, observance of psychological rest, feasible gymnastics. Severe toxicosis is an indication for hospitalization.
Since nausea on an empty stomach is associated with various diseases, for its relief it is necessary to carry out etiotropic, pathogenetic treatment of the underlying pathology. Until the root cause of nausea is established, herbal teas (chamomile, ginger) can be used to reduce discomfort, prokinetics, antacids, light sedative herbal remedies are prescribed from medications. When a symptom is combined with repeated vomiting, severe pain in the abdomen, and violations of the general condition, you should immediately consult a doctor.