Abstract Gastric cancer is one of the common cancers. The early symptoms of gastric cancer are not obvious. As time goes by, gastric cancer lesions change from small to large, from shallow to deep, and from no metastasis to metastasis. Even there is no clear boundary between the late stages, not only that, but there is often a great crossover of symptoms between the stages.
Gastric cancer is one of the common cancers. The early symptoms of gastric cancer are not obvious. As time goes by, gastric cancer lesions change from small to large, from shallow to deep, and from no metastasis to metastasis. There is no clear boundary between advanced stages, not only that, there is often a great crossover of symptoms between stages, some patients have reached the advanced stage, but the symptoms are not obvious, some are in the early stage but have more prominent symptoms, and some Patients present with symptoms of organ metastases or with symptoms of comorbidities. According to domestic statistics, the common symptoms of advanced gastric cancer are as follows:
①Abdominal pain: When gastric cancer develops and expands, especially when the infiltration penetrates the serosa and invades the pancreas or transverse mesocolon, persistent severe pain may occur and radiate to the lower back. Very few patients with perforated cancerous ulcers may also experience severe abdominal pain and signs of peritoneal irritation.
②Loss of appetite and emaciation: The absorption of cancer toxins can make the patients increasingly emaciated, fatigue, anemia, and malnutrition, which are often progressively aggravated, and finally manifested as cachexia.
③ Nausea and vomiting: It is also one of the more common symptoms, which can occur in the early stage. Cancer of the gastric antrum may also present symptoms of pyloric obstruction.
④ Hematemesis and melena: When ulcers are formed on the surface of the cancer, hematemesis and melena appear. One-third of patients with gastric cancer often have a small amount of bleeding, most of which are positive for occult blood in the stool, and some may have intermittent melena, but there are also those who seek treatment for a large amount of hematemesis.
⑤ Diarrhea: It may be related to hypochlorhydria, and the stool may be mushy or even diarrhea before dawn. Advanced gastric cancer involving the colon can often cause diarrhea and bloody stools.
⑥ Difficulty in swallowing: After the cancer grows, symptoms of obstruction may appear. Cardia or fundus cancer can cause dysphagia, and gastric antrum cancer can cause pyloric obstruction symptoms.
