Lung Cancer: Basics, Signs and Symptoms of Lung Cancer

Gaurav Tiwari
SuperScience Blog
Published in
4 min readOct 28, 2020


The out-of-control escalation of anomalous cells that grow in one or both of the lungs, usually in the cells that align in the air passages.

Abnormal cells do not develop into healthy lung tissues, they divide very quickly and formulate tumors called lung cancer.

With the passage of time, tumors become bigger and further copious, they chip away at the lung’s capacity to endow the bloodstream with the supply of oxygen. Tumors that stay in one rest and do not tend to propagate are called benign tumors.

The other kind of tumors are called malignant tumors; these are kinds of one of the most dangerous tumors. They spread to other parts of the body, either through the bloodstream or through the lymphatic system. Another term that is used in lung cancer and in the medical world is called metastasis.

Metastasis means the propagation of cancer from the point of origin to other parts of the body.

Once cancer spreads and makes its foothold in your body, it is when it’s very difficult to treat this lethal disease.

There are mainly two types of lung cancer, generally prevalent in the medical world nowadays, these are primary lung cancer and secondary lung cancer.

In primary lung cancer originates in the lungs.

In secondary lung cancer, it starts somewhere else in the body metastasizes and then manages to reach at lungs.

They are known as the different kinds of cancer and are not treated in the same way.

Cancer contributes to the 13% deaths globally.

Signs of lung cancer

There are many signs of lung cancer from which one can easily perceive if he has developed this lethal cancerous disease or not.

If someone finds one or many of the signs of lung cancer in him he should immediately rush to a qualified and trusted physician for his complete medical checkup to confirm that if he has developed this disease or not.

Because cancer can be treated in the initial stages but it’s very tough to cure the cancer in the last stages.

So one must take a complete medical checkup and if the disease of cancer especially lung cancer is diagnosed, he must get complete medical treatment at the earliest of the stages, so one can safeguard his life at the earliest of the cancerous stage.

Here are some of the most common signs of lung cancer given below so that you can easily assess whether you have developed the disease or not.

  • The patient develops a cough that does not go away or gets down.
  • Blood comes in the coughing or rust colored sputum (spit or phlegm) is shown.
  • The patient of this disease will have a symptom of chest pain that becomes more painful when the patient takes deep breaths, laughs or coughs.
  • The patient feels croakiness
  • One of the signs of lung cancer is that there is an occurrence of weight loss and loss of appetite also.
  • There is a feeling of shortness of breath
  • The signs of lung cancer are also shown when the victim feels very tired or weak also.
  • There are infections such as bronchitis and pneumonia that does not goes away and keep coming back to the affected person recurring.
  • There is a new onset of the patient getting out of breath.

When lung cancer spreads to nearby parts of the body, there is a constant feeling of back pain or pain in the hips.

If lung cancer spreads to the brain then the signs of lung cancer the patient feels headaches, lack of sensation in the arm or legs, feelings of faintness, and there are balance problems also faced by patient when cancer rushes to brain and also seizures. The cancer may also affect spinal cord along with nervous system also.

If this cancer reaches the liver then yellowing of the eyes and skin occurs. This is called jaundice.

Lumps across the exterior of the body because of cancer spreading to the skin or to lymph nodes, which are collections of immune system cells, like those in the neck or above the collarbone, are found.

These signs are not necessarily lung cancer but some other diseases can also cause such signs of lung cancer.

However, as described earlier, if you develop such signs and symptoms, you must approach a qualified doctor.

Get a complete medical checkup to safeguard your most precious life at the earliest of the stage of the disease, because it’s always easy to cure the disease at the early stages, but very tough at the last stages.

Some lung cancers can cause syndromes:

  • Horner syndrome
  • Superior vena cava syndrome
  • Paraneoplastic syndrome etc.

Symptoms of lung cancer

As we have discussed earlier the signs of lung cancer now we are going to discuss the symptoms of lung cancer which are almost the same but we will discuss here in detail and describe it which are as under

  1. About 25% people which are victims of lung cancer show no symptoms of lung cancer until they are diagnosed with the disease. Their cancer is usually diagnosed while doing an X-ray or CT scan done for other purposes. But most of them approximately 75% have developed symptoms of lung cancer before they are diagnosed. Here we are going to discuss the most common causes and symptoms of lung cancer which are
  2. Wheezing, in simple words patients feels out of breath. A whistle sound is heard when one exhales due to constricted airway. This is a symptom of many lung diseases which also includes lung cancer. It means if you have a whistling sound when you exhale, chances are that you have developed lung cancer. Out of breath can also occur due to some tumors alongside the airways.
    3. The patient has difficulty swallowing.
    4. There is a pain in the shoulder and outside of the arm
    5. There is hoarseness found
    6. Chest pain
    7. Coughing
    8. Hemoptysis etc.



Gaurav Tiwari
SuperScience Blog

Hello! I am Gaurav Tiwari. I am an entrepreneur, blogger and WordPress developer with expertise in conversion, performance and growth.