5 atypical signs of lung cancer. If you miss them, lung cancer will definitely be delayed to the late stage!

Lung cancer is one of the malignant tumors with the fastest growing incidence and mortality rate, and it poses the greatest threat to people's health and life. In the past 50 years, many countries have reported that the incidence and mortality rate of lung cancer have increased significantly. The incidence and mortality rate of lung cancer in men rank first among all malignant tumors, and the incidence and mortality rate in women rank second. The cause of lung cancer is still not completely clear, but a lot of data show that long-term heavy smoking is closely related to the occurrence of lung cancer.

Lung cancer is a relatively common respiratory disease. The symptoms of this disease are non-specific and difficult to distinguish from some respiratory diseases. Therefore, in most cases, once the disease is discovered, it is often in the middle or late stages and the best time for treatment has been lost. Therefore, sufficient attention should be paid to this disease, and early detection and early treatment are the key.

Be alert to the five major symptoms that indicate lung cancer!

1. Cough

Cough is one of the early symptoms of lung cancer and also a relatively obvious symptom of lung cancer. Generally speaking, the cough caused by lung cancer is a dry cough. If you have a long-term dry cough and the drug treatment effect is not obvious, you must pay enough attention to it.

2. Blood in sputum

If you have blood in your sputum when you cough, even if it is a slight one, you should pay attention to it, as it may be a precursor to lung cancer. Generally speaking, for common diseases, coughing will not cause blood in the sputum. It is recommended that you go to a regular hospital for relevant examinations when you have blood in your sputum.

If you are diagnosed with lung cancer, you should receive scientific treatment in a timely manner. Do not listen to advertisements, folk prescriptions, or choose unqualified medical institutions, which will delay the disease and miss the best recovery period. Of course, you should not be lucky and think that lung cancer will not happen to you.

3. Difficulty breathing

Lung cancer develops relatively quickly. If patients cannot discover and treat the disease in time, it will cause further development of lung cancer. As the tumor gradually grows, it often compresses the respiratory tract and other parts. In severe cases, the respiratory tract will be blocked. In this case, the patient will have obvious symptoms of difficulty breathing.

It should be noted that as the disease progresses, the patient's coughing symptoms will become more severe, and symptoms such as fever and coughing up pus and sputum will also appear. In this case, you must be vigilant and do relevant examinations.

4. Other early symptoms

Patients may also experience chest tightness, significant weight loss, hoarseness, and other symptoms. Some patients may also experience difficulty swallowing. These symptoms are generally not obvious in the early stages, and patients often ignore them. In fact, as long as you pay more attention to your health and pay more attention to physical symptoms, it is easy to find your own abnormalities. Be sure to check and treat as soon as possible, and pay attention to related care.

5. Shoulder pain

When people have shoulder pain, they think of frozen shoulder, but it can actually be a precursor to lung cancer. On the one hand, if the tumor grows higher up, it will pull on the chest and cause shoulder pain. On the other hand, it may be that cancer cells have metastasized to the clavicle or neck, compressing the nerves and causing shoulder pain. Therefore, everyone must pay attention to it.

Dissemination and metastasis of lung cancer

1. Direct diffusion

Tumors near the periphery of the lungs can invade the visceral pleura, and cancer cells can fall off and enter the pleural cavity, forming implant metastasis. Central tumors or tumors near the mediastinum can invade the visceral pleura, chest wall tissue, and mediastinal organs.

2. Hematogenous metastasis

After the cancer cells return to the left heart through the pulmonary veins, they can metastasize to any part of the body. Common metastatic sites are the liver, brain, lungs, skeletal system, adrenal glands, pancreas and other organs.

3. Lymphatic metastasis

Lymphatic metastasis is the most common metastatic route of lung cancer. Cancer cells invade the adjacent pulmonary segments or peribronchial lymph nodes through the lymphatic vessels around the bronchi and pulmonary blood vessels, then reach the hilar or subcarinal lymph nodes, then invade the mediastinal and paratracheal lymph nodes, and finally affect the supraclavicular or cervical lymph nodes.