People whose family history includes cancer patients are very cautious and pay attention to specific signs. They work with their doctor, regularly check their health, and do everything necessary for cancer prevention.
But unfortunately, many people don`t pay attention to signs of cancer that they don`t expect. The cancer industry draws people`s attention only to a few types of cancer, which doesn`t help. Therefore, knowing as much as possible about cancers is very important to be able to react in time.
Each type of cancer has its own signs and symptoms, and everything depends on where it is located and how much it has spread. However, there are signs that are common to several types.
Most of them are related to how the body reacts to unwanted organisms. Below, you will read 15 signs of cancer, but most people do not consider these signs dangerous.
Source: Healthonlinecentral

1. Changes in `big business`
Frequent diarrhea, constipation, or sudden changes in stool size can indicate cancer in the intestinal tract. The same applies to regular pains.
2. Changes in `little business`
More frequent trips to the toilet or pains associated with urination can be signs of cancer related to the bladder and prostate.
3. Ulcers
Ulcers can be a sign of several cancers, such as oral, skin cancer, and cancer that affects the genitals. If you notice ulcers on any part of the body, consult a doctor about them.
4. Bleeding
Several types of cancer can cause bleeding, and its origin can depend on the type itself. The most typical signs are bloody stools or urine, bloody discharge, or coughing up blood.
5. Lumps or thickenings
Any new lump or an old one that changes size is a reason to visit a doctor. It must be said that several types of cancer are associated with growths and tumors that can be felt on the skin.
6. Digestive disorders
Considering that digestive disorders are a common occurrence, they are most often misdiagnosed as symptoms. However, often they indicate upper digestive tract cancer. Difficulty swallowing and persistent pains can also be signs of cancer.
7. Changes in freckles and birthmarks.
Any changes in color, shape, and size can indicate cancer. Consult a doctor if you notice something unusual, especially if pain appears.
8. Unusual hair growth
It is important to mention that unusual hair growth is not only associated with skin cancer. Sometimes it can indicate something else. If you notice something new, consult a doctor, as sudden changes in the body are the biggest cancer factor.
9. Skin changes
Again, skin changes are not only associated with skin cancer. Reddish, yellowish, or darker skin are the most typical changes that indicate cancer.
10. Pains
All pains that do not go away, such as headaches or back pains, can indicate a specific cancer. Different body parts are associated with different types of cancer, and with all kinds of chronic pains, go to the doctor.
11. Fever
Even if fever is mostly associated with immune system cancer, it can be attributed to any other cancer that starts spreading to other organs.
12. Weight loss
Sudden weight loss without any reason, such as medications, diet, or lifestyle changes, can indicate cancer. Most cancer patients experience weight loss.
13. Coughing
Chronic cough or stabbing pains in the throat can indicate cancer in the respiratory system, such as throat or lung cancer. Consult a doctor if the cough does not go away.
14. Unusual lymph nodes
Despite the fact that we have countless lymph nodes, all sensitive, swollen, and bothersome lymph nodes should be shown to a doctor.
15. Fatigue
Last but not least - fatigue often indicates cancer, it is the immune system`s natural response. Some cancers can cause blood loss, which will also cause fatigue. Consult a doctor if you experience chronic fatigue.
Note: Go to the doctor if you have any of these symptoms. The main thing is to detect cancer in time to have greater chances to fight and win it before it spreads to other parts of the body.