The body will alarm if there is cancer in the body, reminder: 3 places become black, or cancer is approaching

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I. Why is the stool black after eating animal blood?

This is because animal blood is rich in iron, which cannot be absorbed by the body in its entirety after entering the body. This is a normal physiological phenomenon that returns to normal after the iron is metabolized in the body.

However, it is important to note that if you are not eating animal blood and still have black stools, it may be due to gastrointestinal bleeding, and we recommend a timely visit to the hospital for an examination.

2. 3 darkening of the body, or a signal of approaching cancer

But if the stool still appears abnormally dark without eating animal blood, be alert to the possibility that it is caused by cancer. In addition to the darkening of the stool, the abnormal darkening of these parts of the body should also be alerted to the possibility of disease.

1. Black stools - stomach cancer

The early symptoms of stomach cancer are very similar to those of gastritis and stomach ulcers, such as bloating and pain, but if tarry black stools also appear, it is likely to be stomach cancer. When the tumor invades the blood vessels, it causes abnormal bleeding in the digestive tract, which then allows the blood to stay in the intestines for a long time, and the red blood cells within the blood will be destroyed, causing the hemoglobin to combine with sulfide to produce iron sulfide to make the stool black in color.

In addition to black stools, stomach cancer can present with a range of abnormal symptoms such as persistent indigestion, upper abdominal pain, weight loss, anemia, and abdominal masses.

People with a family history of gastric cancer, those with H. pylori infection, and those with chronic atrophic gastritis/gastric ulcer/gastric polyps are all at high risk for gastric cancer and should undergo regular gastroscopy and serum tumor marker tests, which are recommended once every 1-2 years, and the exact frequency should be recommended by a medical professional.

2. Dark face - liver cancer

Dark face is one of the typical symptoms of liver cancer, because when the liver is diseased, it will cause its normal metabolism of body pigments to be affected, and a lot of melanin flows throughout the body with the blood. As the skin of the face is thinner, pigmentation is more likely to occur, resulting in darkening of the face. The most obvious is the darkness around the eyes, because the skin in this area is the thinnest on the face.

People with long-term alcohol abuse, non-alcoholic steatohepatitis, cirrhosis, a family history of liver cancer, and a history of hepatitis B are recommended to undergo regular liver cancer screening, and the main tests available are ultrasound, CT, liver function tests, and tumor markers.

3. Skin nevi-melanoma

Melanoma mostly develops from skin nevi. Melanoma originates from melanocytes, which are normally evenly distributed in the body under the skin, but it can over-divide and proliferate due to various factors and eventually gather into clusters to form dark pigmented nevi.

Most melanomas are benign lesions, but melanomas can also get out of control due to excessive UV exposure, genetic susceptibility, skin color type, and other factors, and eventually over-divide and proliferate to become highly malignant melanomas. Melanoma appears more frequently on the skin, with a high prevalence in the two areas of hands and feet, and also in the nasal cavity, mouth, vagina, face, and scalp. Seventy percent of melanomas are clinically associated with chronic sun damage.

To determine whether a mole has a tendency to become malignant, you can use the ABCDE rule:

3. American Cancer Society: Do 4 things right and cancer patients can live longer

The 3rd edition of the American Cancer Society's Guidelines for Nutrition and Physical Activity for Cancer Survivors makes recommendations for cancer patients on how to improve quality of life and prolong survival.

Compared to the general population, cancer patients should ensure that their dietary intake is nutritious and well-rounded. Daily, they should eat more fresh fruits and vegetables and grains, less red meat and processed meat, and try to focus their food intake on pure and natural ones. You can follow the Mediterranean diet pattern and try to keep your food intake diverse to allow your body to consume different nutrients.

Some studies have found that proper exercise for cancer patients is beneficial for improving mood, physical function, and health-related bone health, sleep, and more. Note that exercise should be measured and maintained at a moderate to high intensity for 75-150 minutes per week, as your body allows.

There is a relationship between being overweight and obese and the development of cancer, and for patients who already have cancer, they also need to maintain their weight within a healthy range through diet and exercise to avoid being overweight and obese.

Alcohol is a clear class of carcinogens and is not recommended to be consumed with or without cancer, especially during cancer treatment, as it can greatly reduce the effectiveness of treatment and increase the risk of death and shorten life expectancy.