Lung cancer is the uncontrolled growth of abnormal cells in one or both lungs. These abnormal cells do not carry out the functions of normal lung cells and do not develop into healthy lung tissue. As they grow, the abnormal cells can form tumors and interfere with the functioning of the lung, which provides oxygen to the body via the blood.

Lung cancer is the most common cause of death due to cancer in both men and women throughout the world. According to the U.S. National Cancer Institute, approximately one out of every 14 men and women in the U.S. is diagnosed with cancer of the lung at some point in their lifetime. Lung cancer is predominantly a disease of the elderly; almost 70% of people diagnosed with lung cancer are over 65 years of age, while less than 3% of lung cancers occur in people under 45 years of age.

What Causes Lung Cancer?

The development of lung cancer is strongly associated with cigarette smoking, approximately 90% of lung cancers are attributable to use of tobacco. Pipe and cigar smoking can also cause lung cancer, but the risk is not as high as with cigarette smoking. Tobacco smoke contains more than 4,000 chemical compounds, many of which are cancer causing (carcinogens). Passive smoking, i.e. the inhalation of tobacco smoke by non-smokers who live or work with smokers, is also an established risk factor for the development of lung cancer.

Genetic susceptibility (i.e. family history) may play a role in the development of lung cancer. Other causes of lung cancer include air pollution (from vehicles, industry, and power generation) and inhalation of asbestos fibres (usually in the workplace).

Lung Cancer Symptoms

Early symptoms and signs of lung cancer

There may be no symptoms at the onset of the disease. When present, common symptoms of lung cancer may include:

Coughing: This includes a persistent cough that doesn't go away or changes to a chronic smoker's cough, such as more coughing or pain.
Coughing up blood: Coughing up blood or rust-colored sputum (spit or phlegm) should always be discussed with your doctor.
Breathing Difficulties: Shortness of breath, wheezing or noisy breathing (called stridor) may all be signs of lung cancer.
Loss of Appetite: Many cancers cause changes in appetite, which may lead to unintended weight loss.
Fatigue: It is common to feel weak or excessively tired.
Recurring infections: Recurring infections, like bronchitis or pneumonia, may be one of the signs of lung cancer.
Signs of advanced stages of lung cancer

Advanced stages of lung cancer are often characterized by the spread of cancer to distant sites in the body. This may affect the bones, liver or brain. As other parts of the body are affected, new lung cancer symptoms may develop, including:

Bone pain
Swelling of the face, arms or neck
Headaches, dizziness or limbs that become weak or numb
Jaundice
Lumps in the neck or collar-bone region
Treatment

Treatment for cancer involves a combination of surgery to remove cancer cells, chemotherapy and radiation therapy to kill cancer cells. Lung cancer is incurable unless complete surgical removal of the tumour cells can be achieved. Surgery is the most effective treatment for lung cancer, but only a few percentage of lung cancers are suitable for surgery i.e. Stage I and II NSCLC and cancer that has not spread beyond the lung.

Radiation therapy may be used for both NSCLC and SCLC and is a good option for people who are not suitable for surgery or who refuse surgery. Chemotherapy is used for both NSCLC and SCLC. Chemotherapy drugs may be given alone or in combination with surgery or radiation therapy. Chemotherapy is the treatment of first choice for SCLC since it has usually spread extensively in the body by the time it has been diagnosed.

Also used in the treatment of lung cancer are targeted therapies. These are drugs (gefitinib and erlotinib) or antibodies (cetuximab, bevacizumab) that block the growth and spread of cancer by interfering with specific molecules involved in tumor growth and progression. They are used in some patients with NSCLC that does not respond to standard chemotherapy.

Lung Cancer: Causes, Symptoms and Treatments

The sound of the word cancer can be really traumatic and the fact the one may most of the time be unaware of this condition can be hard to handle. The same is the situation in the case of lung cancer as it does not produce any remarkable signs and symptoms in its early stages. However, there are ways in which you can be aware of this life-threatening ailment. Here are some tell-tale signs of an early stage of lung cancer:

A stubborn cough:
Beware when a cough is lingering on for long with no sign of relief. When a cough is related to cold and respiratory infection, it will subside within a week or so. But in case the cough is persistent, it can be a symptom of lung cancer. You should never dismiss a stubborn cough regardless of whether it is dry or producing mucus. You should talk to a doctor right away as he can check the lungs and may order for other tests to determine whether you have cancer.

Breathing problems:
Becoming easily winded or shortness of breath is considered the most prominent symptoms of lung cancers. This may occur when cancer blocks or inhibit the airway or when the fluid from the tumor starts building up in the chest. If you find that it is becoming difficult for you to breathe in doing tasks that you found easy before, you should not ignore it.



Wheezing:
When the airways become inflamed, blocked or constricted, then the lungs would produce a wheezing and whistling sound while breathing. It can be associated with a host of other causes that are easily treatable but could also be due to lung cancer.

Headache:
Even though headaches are considered one of the most common health problems, if there is a persistent headache, then it could be a sign that lung cancer has spread to the brain. It is important to understand that all headaches are not associated with the brain metastases. There are times when the lung cancer creates pressure on the superior vena cava which is in charge of supplying blood to the upper part of the brain. This pressure can also lead to headaches.

Pain in the bone:
If the lung cancer has spread to the other parts of the body, then it may produce mild pain in the back and other parts of the body. It tends to become worse during the night when you are resting on your back. But it can be difficult for a commoner to differentiate between muscle and bone pain. In case you are suffering from bone pain, you will see that it is becoming worse with movement. Moreover, lung cancer is also associated with pain in the shoulder, neck, and arm even though it is very rare. You should be very attentive to the pain and aches in the body and consult with an expert at the earliest.

You can easily combat lung cancer if diagnosed and treatment is started in its early stages. In case you have a concern or query you can always consult an expert & get answers to your questions!

Five Signs That You Might Be Suffering From Early Stage Lung Cancer!

Lung cancer is caused by disorderly growth of uncommon cells which line the air passage, usually starting off in a single or both lungs. The irregular cells do not mature into healthy lung tissue but instead divide speedily and result in tumor formation.

Causes behind lung cancer:

Smoking: This is considered as the most significant source of lung cancer. As reported by multiple researches and studies, cigarettes contain over 4,000 chemicals, most of which are cancer causing agents. Active smoking is one of the major causes of lung cancer but what may come to you as a surprise is that extended periods of passive smoking is also a major factor.
Pollution and Exposure: There is high risk of lung cancer development when there is occupational exposure to pollution by chemicals released from industrial factories. Chemical exposure of this kind refers to prolonged exposure over quite few months or years. Some examples of these chemicals are asbestos, diesel exhaust among many others.
Radioactive Gas: Radioactive gases naturally occur in small masses present in all soils and rocks. However, if you breathe in radioactive gases your lungs will damage and may cause the development of abnormal tissue which can cause lung cancer.
Family history: A family history of cancer, especially lung cancer will also put you at high risk of developing lung cancer.
Treatment methods of lung cancer:

Chemotherapy: Chemotherapy is a method in which drugs are injected through veins in your arm (intravenously) or orally or in a combination of both. These drugs kill cancer cells and help to stop it from spreading any further as well.
Clinical Trials: These trials are experimental lung cancer treatment studies. You may have to try out this clinical therapy if other treatment methods aren t working and only if you are accepted into it.
Surgery: A surgeon will help remove affected areas of the lung including cancerous tumors via surgery. The surgeon may need to remove parts of the lung along with the cancerous growth. In certain cases, one side of the lung may also be completely removed to stop the spread of the malignant tissue.
Radiation Therapy: This is a therapy where high energy electromagnetic waves are passed through your body to destroy cancer cells with the help of high-powered energy beams.
Can you prevent lung cancer?

Nutrition -- A  healthy diet with lots of fruits and vegetables may also help reduce your risk of lung cancer. Some evidence suggests that a diet high in fruits and vegetables may help protect against lung cancer in both smokers and non-smokers. But any positive effect of fruits and vegetables on lung cancer risk would be much less than the increased risk from smoking.
Exercise -- Even moderate amounts of exercise can aid in lung cancer prevention. Studies suggest that even something as simple as gardening twice a week is associated with a lower risk of developing lung cancer.
Smoking Habits -- If you stop smoking before a cancer develops, your damaged lung tissue gradually starts to repair itself. No matter what your age or how long you ve smoked, quitting may lower your risk of lung cancer and help you live longer. 
Avoidance of Air Pollution -- Long-term exposure to ambient air pollution and, in particular, particulate matter with absorbed polycyclic aromatic hydrocarbons and other genotoxic chemicals has been suspected to increase the risk for lung cancer. So, avoid air pollution as much as possible.

Lung Cancer - Ways You Can Prevent It!

Cancer has been regarded as one of the most deadly diseases. It is a non-communicable chronic disorder, caused by uncontrolled growth of cells in the human body. Every year over 7 million people succumb to this disease globally and over 12 million people are diagnosed with cancer. Indian Council of Medical Research (ICMR), estimated that India will observe over 8 lakh deaths and over 17 lakh new cancer cases annually by the year 2020. The survival expectancy of a cancer patient depends upon the stage of diagnosis.

There are some forms of cancer which show any noticeable symptoms only in the final stage while there are certain other subtle symptoms which if paid attention to might save a life.
Some common signs of cancer:

Unexplained weight loss: This is one of the earliest noticeable symptoms of cancer and is particularly common in patients of lung and breast cancer. Weight loss has been observed in over 40% of cancer patients at the time of diagnosis. Losing over 10% of body weight in a span of 6 months or less could be a cause of concern.
Wheezing: This is associated with lung cancer, which is also the most common form of cancer. When the airway in the lungs is pressed or narrowed by a tumor, it creates a wheezing sound while breathing.
Frequent infections: Frequent infections and fever may indicate that something is not right with the internal organs of the body. This could be because of cancerous conditions such as leukemia or lymphoma. 
Loss of appetite: Cancer impacts the metabolic process of the body, hence often leads to a loss of appetite. This is particularly a symptom of colon, stomach, ovaries and pancreatic cancer. 
Blood in stool/urine: Traces of blood while passing stool or urine could be a symptom of cancer. Though, this could be attributed to many other infections and conditions as well.
Chronic cough: Flu and cough along with symptoms like chest pain, hoarseness, weight loss and fatigue could be because of lung cancer.
Night sweats: Though night sweat could be attributed to many more reasons, it is also one of the many early warning signs of cancer.

Early Warning Signs Of Cancer That We Often Ignore!

Today is World Cancer Day.

Though there are no proven ways to prevent cancer, you can do a lot of things reduce your risk of getting the disease. Here are 10 good important ways to do so:

1. Eat a healthy balanced diet
2. Maintain a healthy weight
3. Drink less alcohol
4. Quit smoking
5. Say No to any form of Tobaco including Pan and Gutka
6. Do regular exercise. At least, Walking.
7. Protect your skin from sun damage
8. Cervical smear tests for women every 3-5 years
9. Breast examination for signs of lumps, dimples or puckering
10. Last but not the least, in case of any lump or doubtful mass, consult an Oncologist without delay.

10 Concrete Ways To Minimize Cancer Risk

Prostate cancer is a cancerous tumor in a man s prostate gland, a small gland that is responsible for producing the seminal fluid which transports and nourishes the sperm. It is a very common type of cancer among men. A few cases of prostate cancer tend to develop slowly while others may progress very fast.
Symptoms-
In the initial stages, prostate cancer may not show any symptom. However, in the latter stages, there may be symptoms such as:
Pain in the bones.
Erectile dysfunction.
Urination can get troublesome.
Presence of blood in the semen.
Pain and discomfort in the pelvic region.
Causes-
The exact causes of prostate cancer are not known. It starts to develop when certain cells in the prostate gland start to mutate. These mutations cause these cells to multiply at a very fast rate and thus, soon form tumors. Although the causes are not known, certain factors tend to aggravate this condition; them being:
Color: According to certain medical reports, a darker skin may mean increased chances of suffering from prostate cancer.
Age: The risk of developing prostate cancer tends to increase with age.
Genetics and Family History: Faulty genes could be another cause of this condition. Also, having some member in the family who is diagnosed with this type of cancer only increases the risks of you suffering from them.
Obesity: If you are obese, then you are more likely to develop prostate cancer.
Treatments-
The treatments for prostate cancer include:
Radiation Therapy: In this procedure, high energy rays are used to target and destroy cancer cells. Usually X-rays or protons are used to treat the cancer cells.
Hormone Therapy: Hormone therapy is a type of treatment wherein certain medications are administered to prevent your body from producing testosterone.
Surgery: If the other treatment methods do not produce desired results, then a surgery is carried out for the removal of the prostate gland. In addition to the prostate gland, some adjoining lymph nodes and tissues are also removed.
Chemotherapy: Chemotherapy is method of destroying cancer cells by injecting chemicals into the body. The medicines are injected into the veins in the arms. 

All About Prostate Cancer

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