What Are the Symptoms of Stomach Cancer?

Stomach cancer can be divided into early-stage and advanced-stage types. In its early phase, symptoms are often mild or absent, making it difficult to detect. Common signs may include heartburn, acid reflux, and belching—symptoms that closely resemble those of general gastritis or peptic ulcers. Because of this similarity, early-stage stomach cancer is often overlooked or misdiagnosed.

In the advanced stage, stomach cancer may produce more specific symptoms. These can include abdominal pain caused by a growing tumor, black stools due to internal bleeding, and difficulty swallowing when the tumor becomes large enough to obstruct the digestive tract. If the cancer spreads to the bones, it can cause widespread bone pain. Peritoneal metastasis may lead to ascites, resulting in bloating and abdominal distension. Additionally, lung metastasis can trigger persistent coughing.

Stomach cancer symptoms are often non-specific, which makes early detection challenging. Individuals with risk factors such as irregular eating habits, a family history of gastric cancer, or frequent consumption of moldy or preserved foods should be especially vigilant. If you experience persistent upper abdominal discomfort, acid reflux, or belching, it's important to seek medical evaluation. Gastroscopy is particularly effective in identifying early-stage stomach cancer and significantly improves the chances of successful treatment.

Early diagnosis plays a crucial role in improving treatment outcomes. Recognizing the warning signs and undergoing timely medical screening can make a major difference in managing this disease effectively.