Stomach cancer often develops slowly and can be difficult to detect in its early stages.
The first symptoms are often vague and may resemble other digestive system disorders, according to The University of Kansas Cancer Center.
Nausea
Nausea is one of the early signs of stomach cancer. The symptom can occur without an obvious cause and may persist for an extended period.
Vomiting
People with stomach cancer may experience vomiting. In some cases, blood may also be present in the vomit.
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Changes in appetite
A change in appetite can be an early sign of the disease.
Some people notice a reduced desire to eat compared with their normal eating habits.
Abdominal swelling
The abdomen may feel swollen or bloated. This is among the symptoms that can occur in people with stomach cancer.
Heartburn
Heartburn is listed as one of the common early warning signs. The symptom can easily be mistaken for less serious digestive issues.
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Indigestion
Stomach cancer can cause persistent indigestion. As a result, the symptom is often overlooked in the early stages.
Unexplained stomach discomfort
Many people experience a vague discomfort in the area above the navel. This is considered one of the more nonspecific signs of the disease.
Stomach pain or discomfort
Pain or discomfort in the stomach can be a symptom of stomach cancer. The intensity may vary from person to person.
Feeling full quickly
Some patients feel full after eating only a small amount of food.
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This sensation typically occurs in the upper part of the abdomen beneath the breastbone.
Unexplained weight loss
Weight loss without changes in diet or exercise habits can be a warning sign. This is a symptom that should be investigated further.
Anemia
Stomach cancer can lead to anemia, a condition characterized by low levels of hemoglobin in the blood.
Symptoms may resemble other conditions
Several signs of stomach cancer can also occur in conditions such as acid reflux, gastritis, and stomach ulcers.
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As a result, the disease can be difficult to identify in its early stages.
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