ExecutiveChronicles.com | Common and atypical cancer symptoms | According to the latest medical data, the number of people who have cancer symptoms is steadily increasing every year. Despite the work done by scientists all over the world in the fight against cancer, the death rate from cancer is large.
This is due primarily to the fact that the disease is diagnosed in the later stages of its development. Every person needs to know what cancer is, its symptoms and diagnosis in order to start the correct treatment in time.
The concept of cancer, the factors of its formation
Cancer is a deadly disease, during which for some reason a malignant tumour is formed from the internal tissues of the body. As it grows, squeezing of nearby blood vessels, nerves, internal organs and the spread of metastases throughout the body occur. Cancer can be formed in any part of the human body: in the gastrointestinal tract, liver, brain, etc.
Subsequently, the malignant formation destroys the most important internal organs, causes irreversible negative changes in the metabolism, nervous, immune, endocrine systems.
This disease in its advanced form is considered incurable and causes a person to be fatal.
The causes of cancer are not precisely defined. Scientists have established that there are external and internal factors that contribute to its formation. These include:
- ultraviolet irradiation;
- smoking and alcoholism;
- poor nutrition;
- various infections;
- poor environmental conditions;
- harmful manufacture, etc.
These factors can serve as a trigger for pathological changes in the DNA structure and activation of the oncogene, as a result of which a malignant tumour is formed. It is important to know how quickly cancer develops, what are the main stages of its development.
The rate of cancer development varies depending on many factors, in particular, on its location. In the liver and lungs, cancer develops very quickly and leads to death, especially in the absence of treatment. The tumour most slowly develops in the thyroid gland.
The first signs and main stages of cancer development
You can select 4 stages of disease progression. We should consider how cancer appears in each of them.
- At the first stage of oncology development, atypical cells form and begin to randomly divide. At the initial stage of development, the disease is successfully cured. The second stage of cancer disease is characterized by the further development of a malignant tumour, which can be eliminated by timely detection of the disease.
- The third stage of cancer is considered more serious when it metastasizes throughout the body’s circulatory or lymphatic system. Treatment of the disease at this stage occurs in rare cases. Each next stage of development of the disease has more vivid signs of cancer.
- The last stage of cancer is incurable. Cancer cells spread through various organs and systems, new malignant growths are formed. Symptoms of cancer appear at this stage especially brightly. The efforts of doctors are aimed at prolonging life and alleviating the condition of the patient.
It is sad that the initial stage of cancer, which is successfully cured at the present stage, has almost no symptoms. In this regard, patients do not seek medical help in time. The disease goes into a more difficult stage of its development.
You can consider how to define oncology at an early stage of its development. Everyone should be alerted by the appearance of such signs:
- appearance causeless severe fatigue;
- probing of dense painless formations in tissues;
- discomfort in any organ;
- increase in body temperature for no apparent reason.
Attention should be paid to the ascendant in cancer, which reflects the external side of the development of the malignant process. External changes in a person who is ill with cancer may result in deterioration of hair, nails, skin, especially on the face and limbs, etc.
Noticing the first signs of cancer, you should immediately consult a doctor to conduct the necessary studies and identify the diagnosis.
Let us take a closer look at how cancer is diagnosed in the skin cancer clinic. If you have any signs of cancer, you should immediately contact a qualified doctor. Modern cancer diagnostics has in its arsenal enough tools and methods for an accurate diagnosis.
Doctors diagnose oncology is usually divided into 2 stages. First, the presence of a malignant tumour in the body is determined. Then a refined diagnosis is carried out, at which the verification of cancer and the degree of its spread are determined.
First of all, the specialist collects and evaluates the history of the disease: conducts a personal conversation with the patient, which clarifies his complaints. Then a primary examination with palpation is performed.