Middle-aged men do not ignore the five kinds of cancer warning signs

Gastric cancer is one of the most common malignant tumor, its incidence in our country ranks first in all kinds of tumors. Malignant tumors in the stomach, adenocarcinoma accounted for 95% of which is the most common gastrointestinal cancer, even among the highest in all human malignant tumors. Early gastric cancer symptoms or only mild symptoms. ...Middle-aged men do not ignore the five kinds of cancer warning signs