Symptoms of stomach cancer patients are like those of early-stage stomach cancer patients, who generally present with some nonspecific gastrointestinal symptoms, such as nausea, vomiting, loss of appetite, and discomfort or acid reflux in the upper abdomen, similar to gastrointestinal ulcers or gastritis. These are some of the clinical manifestations of gastrointestinal symptoms. As the tumor progresses and invades the abdominal cavity or surrounding organs, the patient's symptoms will worsen, possibly causing overall abdominal bloating, discomfort, and even severe pain. Other symptoms include ascites, which is fluid accumulation in the abdominal cavity, vomiting, weight loss, anemia, and clinical manifestations such as vomiting blood or black stools, which are symptoms of gastrointestinal bleeding.