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Sudden onset pain happens in a split second. Rapidly onset pain starts mild and gets worse over the next few minutes. Pain that gradually intensifies only after several hours or even days has passed is referred to as gradual onset pain. [4] One can describe abdominal pain as either continuous or sporadic and as cramping, dull, or aching. The ...
There may be no symptoms but, when symptoms are present, the most common is upper abdominal pain (see dyspepsia). [1] Other possible symptoms include nausea and vomiting, bloating, loss of appetite and heartburn. [1] [2] Complications may include stomach bleeding, stomach ulcers, and stomach tumors. [1]
Stomach cancers usually occur due to fluctuations in acidity level and may present with vague symptoms of abdominal fullness, weight loss and pain. The actual cause of stomach cancer is not known but has been linked to infection with Helicobacter pylori , pernicious anemia , Menetriere's disease, and nitrogenous preservatives in food.
Sometimes, only one or the other is present. [1] This may be accompanied by abdominal cramps. [1] Signs and symptoms usually begin 12–72 hours after contracting the infectious agent. [15] If due to a virus, the condition usually resolves within one week. [18] Some viral infections also involve fever, fatigue, headache and muscle pain. [18]
Congenital disorders of the stomach include pernicious anaemia, in which a targeted immune response against parietal cells results in an inability to absorb vitamin B12. Other common symptoms that stomach disease might cause include indigestion or dyspepsia, vomiting, and in chronic disease, digestive problems leading to forms of malnutrition.
Gastroparesis (gastro- from Ancient Greek γαστήρ – gaster, "stomach"; and -paresis, πάρεσις – "partial paralysis") is a medical disorder of ineffective neuromuscular contractions (peristalsis) of the stomach, resulting in food and liquid remaining in the stomach for a prolonged period of time.
Travelers' diarrhea (TD) is a stomach and intestinal infection. TD is defined as the passage of unformed stool (one or more by some definitions, three or more by others) while traveling. [2] [3] It may be accompanied by abdominal cramps, nausea, fever, headache and bloating. [3] Occasionally dysentery may occur. [5]
Whilst the muscularis externa is similar throughout the entire gastrointestinal tract, an exception is the stomach which has an additional inner oblique muscular layer to aid with grinding and mixing of food. The muscularis externa of the stomach is composed of the inner oblique layer, middle circular layer, and the outer longitudinal layer.