Previously cancer had no answer at all. But in the present time cancer can be treated fully, if it is detected at an early stage. In most of the cases cancer starts with abnormal growth of cell, leading to formation of a tumor. So, how can we detect that there is a tumor in the body? The investigative process that leads to a definitive diagnosis follows a standard pattern.
Symptoms of cancer which could be useful for early detection of cancer:
When a lump has grown to a certain size, its presence is signaled in a number of ways:
• It presses on nearby tissues, which sometimes produces pain.
• It grows into nearby blood vessels, which may produce bleeding.
• It gets so large that it can be seen or felt.
• It causes a change in the way some organ works. Trouble swallowing (dysphagia), for example, might lie the sign of a tumor partially obstructing the esophagus, the passage between the throat and stomach.
Hoarseness or change of voice might indicate a tumor in the larynx, or voice box. These symptoms—pressure, bleeding, a mass, or interference with function—are reflected in the American Cancer Society’s list of sewn curly miming signals:
1. Change in bowel or bladder habits.
2. A sore that does not heal.
3. Unusual bleeding or discharge.
4. Thickening or lump in breast or elsewhere.
5. Indigestion or difficulty in swallowing.
6. Obvious change in wart or mole.
7. Nagging cough or hoarseness.
Recognizing a symptom is the first critical step in the search for cancer. Unfortunately, many people don’t pay any attention to these warning signals. They wait and wait, sometimes for months, before getting the medical attention that could save their lives.
The best chance of diagnosing cancer early depends on someone’s thoughtful and perceptive awareness that something new has happened to his or her body—especially the appearance of one of these symptoms. Despite this, some cancers are silent until they grow to an advanced size, pointing out the need for sensitive tests for the early diagnosis of cancer.