In the early stages of stomach cancer (stomach cancer), there are no symptoms. Stomach cancer is often underdiagnosed, for example, most stomach cancers in the United States are not detected until they are large enough or have spread outside the stomach.
Stomach cancer can cause the following symptoms.
Lose weight (without effort)
Abdominal (animal) pain
A vague discomfort in the abdomen, usually above the navel
Eating a little makes you feel full
Heartburn or upset stomach
Vomiting with or without blood
Swelling or accumulation of fluid in the abdomen
Blood in the stool
Fatigue and weakness due to anemia (anemia).
Yellowing of the skin and eyes (jaundice) if the tumor has spread to the liver.
Most of these symptoms are not caused by stomach cancer, but by other causes such as viral infections or ulcers. Some of these symptoms can be caused by other types of cancer. But people with any of these problems, especially if they persist or worsen, should see a doctor to find out the cause and treat it if necessary.