What are the symptoms of gastric cancer?

Written by Liu Liang
Oncology
Updated on September 02, 2024
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The symptoms of gastric cancer patients are generally common gastrointestinal symptoms such as nausea, vomiting, acid reflux, and discomfort and bloating in the upper abdomen, especially aggravated after eating. As the condition progresses, symptoms may include vomiting blood or black stools. When the cancer invades surrounding organs, clinical symptoms such as abdominal effusion, abdominal distension, and pain may occur. If the tumor is located near the pylorus and causes pyloric obstruction, symptoms of pyloric obstruction will appear, such as gastric retention, acid reflux, and vomiting of overnight food. Additionally, if the tumor bleeds, it may cause severe vomiting of blood. Therefore, different stages of the disease present different symptoms. If gastric cancer progresses to the late stage with metastasis to distant organs, clinical manifestations corresponding to the sites of metastasis will also appear.

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Written by Jiang Guo Ming
Gastroenterology
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Is black stool a sign of stomach cancer?

Black stools might suggest stomach cancer, but most cases are not. Often, factors such as diet structure and medications can lead to transient black stools, which are physiological. For instance, consuming animal blood, foods containing pigments, and certain medications like blood tonics and bismuth drugs protecting the stomach lining can cause transient black stools. Once dietary adjustments are made or related medications are stopped, the stool color usually returns to normal. In pathological conditions, such as acute gastric mucosal lesions and bleeding from gastric or duodenal ulcers, black stools can also occur. Thus, the occurrence of black stools might suggest the possibility of stomach cancer, but in most cases, it likely is not.

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Written by Liu Liang
Oncology
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Can late-stage gastric cancer be treated?

Patients with late-stage gastric cancer generally may not have the opportunity for curative surgery, which is mainly suitable for early-stage gastric cancer patients. For late-stage gastric cancer patients, the treatment plan should be chosen based on the specific condition of the patient. If the patient's general condition is relatively good, chemotherapy can be an option. The type of chemotherapy, whether intravenous combination chemotherapy or oral drugs like tegafur capsules or capecitabine, which generally have milder reactions, depends on the patient's condition. Additionally, late-stage gastric cancer patients can try molecular targeted therapy, such as anti-angiogenesis drugs like apatinib, etc. Therefore, treatment options should be selected based on specific circumstances. The use of medications should be conducted under the guidance of a doctor.

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Written by Zhou Zi Hua
Oncology
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What are the symptoms of stomach cancer?

Gastric cancer can cause pain in the upper abdomen. If the condition gradually worsens, it can manifest as persistent pain, postprandial fullness and vomiting, belching, and lack of appetite; upper gastrointestinal bleeding, manifesting as vomiting blood, blood in the stool, and black stools; there can also be difficulty swallowing, weight loss and anemia. If bone metastasis occurs, it can manifest as bone pain and pain in the lower back. If a large amount of ascites appears, it can lead to abdominal distension, with shifting dullness detectable on percussion. If liver metastasis occurs, it can manifest as jaundice, and enlargement of the supraclavicular lymph nodes can also occur.

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Written by Liu Liang
Oncology
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Early manifestations of gastric cancer

The early signs of gastric cancer may include nausea, vomiting, or mild acid reflux, which are symptoms similar to those of gastritis, stomach ulcers, or duodenal ulcers. Therefore, initially, these patients may not take their condition seriously, assuming they might just have gastritis or peptic ulcers. These are some of the early manifestations of gastric cancer, and some patients may also experience discomfort and a feeling of fullness after eating.

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Written by Liu Liang
Oncology
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Can stomach cancer be cured?

Whether gastric cancer can be cured depends greatly on the stage at which it is discovered. Clinically, if there is no recurrence or metastasis within five years, it is considered cured. The treatment of gastric cancer is primarily surgical. Therefore, for early-stage gastric cancer patients, if a surgeon assesses that curative surgery is feasible, it is recommended to perform a radical surgical resection. For stage I gastric cancer patients, the five-year survival rate after surgical treatment can generally reach over 90%, which is quite effective. However, for those with advanced gastric cancer, it is generally incurable. Treatments, including chemotherapy, targeted therapy, or optimal symptomatic supportive care, aim to alleviate the patient's suffering and extend their life, but generally cannot cure advanced gastric cancer.