#7 Breathing Problem
Having problem while breathing leads to respiratory issues. It can also be the first sign of lungs cancer as the tumor can restrict the air path inside the body.

#6 Wheezing
If you notice a Wheezing sound while breathing it indicates some disorder. Take a medical check up to find out any irregularly that can be cured timely.

#5 Chest Pain
Chest pain, pain in the shoulder or back can cause something serious. It can also be the first symptom of lungs cancer.

#4 Headache
Cancer spreads metastasis. So if a person is suffering from cancer, he might have continuous headaches. It is the same in case of lung tumor.

#3 Persistent Cough
Persistent Cough is another sign of lungs cancer. So if you are coughing mucus for more than 3 weeks, visit a doctor as soon as possible to know its cause.

#2 Pain In The Bones
Pain in the bones is a matter that should not be neglected. Visit a doctor if you are suffering from some kind of bone pain.

#1 Sudden Weight Loss
Having Weight loss without any work out or dieting is a matter that should be paid attention on.