Nowadays, the incidence of stomach cancer is very high, and this serious malignant tumor has been one of the common stomach diseases. China is the country with more stomach cancer patients. Irregular diet and not visiting for minor illnesses are the reasons for the increasing number of stomach cancer patients. However, many people do not know the early symptoms and precursors of gastric cancer, which leads to more and more serious condition and miss the best treatment time of gastric cancer. Here I will introduce the early symptoms and precursors of stomach cancer in detail.
What are the reasons for the emergence of stomach cancer?
1.Dietary factors
Long-term consumption of moldy food, moldy food, pickled vegetables, smoked and salted fish and excessive intake of salt can increase the risk of stomach cancer. These foods contain high concentration of nitrate which can be easily absorbed by the body and turned into nitrite by bacterial reductase in the stomach and then combined with amine to form carcinogenic amine nitrite;
2.H. pylori infection
Its secreted toxin can make the gastric mucosa lesion;
3.Genetic factors
Epidemiological survey shows that the incidence of gastric cancer has a tendency to gather in families;
4.Pre-cancerous lesions
That is, systemic or local diseases and states prone to malignant changes, such as chronic atrophic gastritis, adenomatous gastric polyps, residual gastritis, etc.
These early symptoms and precursors of gastric cancer must be paid attention to
1.Symptoms of abdominal pain
Gastric cancer will cause inflammatory infiltration to penetrate the plasma membrane and invade the pancreas or transverse colon mesentery, thus inducing continuous severe pain and radiating to the lower back. Very few patients with perforated cancer ulcers may also have severe abdominal pain and signs of peritoneal irritation.
2.Nausea and vomiting symptoms
Nausea and vomiting is one of the more common early symptoms of gastric cancer. In addition, cancer of the gastric sinus may also show symptoms of pyloric obstruction.
3.Symptoms of vomiting blood and black stool
When ulcers are formed on the surface of the cancer, patients may also experience vomiting blood and black stool. Clinically, one-third of gastric cancer patients often have small amount of bleeding, mostly manifested as positive occult blood in the stool, and some of them may have intermittent black stool, and also have a lot of vomiting blood.
4.Loss of appetite and wasting symptoms
The absorption of toxins from the cancer will make patients with gastric cancer become increasingly thin, anemic, weak and malnourished, and the symptoms are often progressively aggravated until they finally become cachexia.
Pay attention to dietary taboos
1, usually should avoid eating cold, coarse, hard and overheated food;
2, avoid eating spicy and irritating condiments such as pepper, mustard, etc.;
3, strictly forbidden to drink strong wine, strong tea, high concentration of drinks and other stimulating food;
4, avoid excessive oil and too rough food such as fried chicken, fries and other fried food.
5, the texture of food should be soft and easy to digest, should not eat coarse grains, dried beans, hard fruits, vegetables with high crude fiber content (bamboo shoots, celery, etc.), spicy and stimulating and gas-producing food (such as radish, garlic, white potatoes, etc.). These foods are not completely inadmissible, just need to consider the amount and personal tolerance of these foods.