The abdominal symptoms which typically present earliest include heartburn and indigestion. Heartburn (or dyspepsia), a burning sensation in the chest and upper abdomen, results from regurgitation of acid into the esophagus. A tumor in the stomach will often lead to improper breakdown of food in the stomach, which, in turn, can lead to burping and other symptoms of indigestion. Just because you experience these symptoms doesn’t mean you have cancer, but if you experience them frequently, speak to a doctor.

Stomach pain, and pain in your sternum (breast bone) can be associated with stomach causes. [4] X Trustworthy Source National Health Service (UK) Public healthcare system of the UK Go to source If you find yourself frequently feeling full and bloated, and are experiencing some of the other early symptoms, visit your doctor. {“smallUrl”:“https://www. wikihow. com/images/thumb/f/f4/Recognize-Stomach-Cancer-Step-4. jpg/v4-460px-Recognize-Stomach-Cancer-Step-4. jpg”,“bigUrl”:"/images/thumb/f/f4/Recognize-Stomach-Cancer-Step-4. jpg/aid4056431-v4-728px-Recognize-Stomach-Cancer-Step-4. jpg",“smallWidth”:460,“smallHeight”:345,“bigWidth”:728,“bigHeight”:546,“licensing”:"<div class="mw-parser-output">

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Vomit in rare cases may be in streaked with blood. If you are vomiting and you see blood, make an appointment to see a doctor immediately. [7] X Trustworthy Source National Health Service (UK) Public healthcare system of the UK Go to source

Look out for signs of cachexia (decrease in muscle mass). Cancer cells will increase your basal metabolic rate, which will then result in a wasting of muscle. Loss of blood from the cancer can result in anemia, which may cause paleness and weakness. People with cancer may have chronic fatigue, a feeling of lethargy, or trouble staying alert. [8] X Research source

Stomach tumors can compress surrounding structures, while ulcerative cancer can erode the stomach’s membranes. Both of these two things can cause stomach pain.

A developed cancer may cause a hard mass in the left-upper abdomen in the area of the stomach. [12] X Research source

If you experience constipation or diarrhea, this can be a symptom of stomach cancer. Always be completely open when discussing any symptoms in your waste with a doctor.

In the US, stomach cancer is more common in Hispanic Americans, African Americans, and Asian/Pacific Islanders than it is in non-Hispanic white Americans. People who live in Japan, China, Southern and Eastern Europe, and South and Central America are more likely to get stomach cancer than people who live elsewhere. [15] X Trustworthy Source PubMed Central Journal archive from the U. S. National Institutes of Health Go to source

It is thought that being overweight or obese may be a cause of cancers of the cardia (the upper part of the stomach). If you work in the coal, metal, or rubber industry, your risk of stomach cancer may be higher. Workers in these fields are exposed to more carcinogens than workers in other industries. [18] X Trustworthy Source American Cancer Society Nonprofit devoted to promoting cancer research, education, and support Go to source

Stomach cancers are more likely to develop in those who have previously had part of their stomach removed in surgery. Stomach cancer runs in families, so find out about your family medical history. However, keep in mind that adopting lifestyle changes, such as following a healthier diet, can help to reduce your risk. If you have a close relative who was diagnosed with stomach cancer, you are at a greater risk than someone who has no family history of stomach cancer. [20] X Expert Source Roy Nattiv, MDBoard Certified Gastroenterologist Expert Interview. 13 January 2021.