Cancer is a term used to describe a group of diseases characterized by the uncontrolled growth and spread of abnormal cells in the body. There are many types of cancer , each with its own set of symptoms, but there are some general signs and symptoms that can indicate the presence of cancer . It's important to note that having any of these symptoms does not necessarily mean that you have cancer. Many of these symptoms are also common in other, less serious conditions. However, if you are experiencing any of these symptoms, it's important to see a doctor to determine the underlying cause. Here are some of the most common symptoms of cancer: Fatigue: Feeling tired all the time, even after a good night's sleep, can be a sign of cancer . Cancer cells use a lot of the body's energy, which can cause fatigue. Unexplained weight loss: Losing weight without trying can be a sign of cancer . This is particularly true if you lose 10 pounds or more without changing your diet o
According to the world health organization, health is" a state of complete physical, mental and social well-being and not merely the absence of disease and infirmity."