What is cancer give the basis of classification?

What is cancer explain?

Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body’s normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor.

What is cancer simple?

(KAN-ser) A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also spread to other parts of the body through the blood and lymph systems. There are several main types of cancer.

Why is cancer called cancer?

The word “cancer” came from the father of medicine: Hippocrates, a Greek physician. Hippocrates used the Greek words carcinos and carcinoma to describe tumors, thus calling cancer “karkinos.”1 The Greek terms actually were words that were used to describe a crab, which Hippocrates thought a tumor resembled.

Which type of cancer is most common?

The most common type of cancer on the list is breast cancer, with 284,200 new cases expected in the United States in 2021. The next most common cancers are prostate cancer and lung cancer.

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What are the 5 most common types of cancer?

The Top 10 Cancers of America

  • 1 – Skin cancer.
  • 2 – Lung cancer.
  • 3 – Prostate cancer.
  • 4 – Breast cancer.
  • 5 – Colorectal cancer.
  • 6 – Kidney (renal) cancer.
  • 7 – Bladder cancer.
  • 8 – Non-Hodgkin’s lymphoma.

What are the top 10 causes of cancer?

The germline mutations are carried through generations and increase the risk of cancer.

  • Cancer syndromes.
  • Smoking.
  • Materials.
  • Alcohol.
  • Diet.
  • Obesity.
  • Viruses.
  • Bacteria and parasites.

What are two types of cancer?

Eventually, those abnormal cells can form into big masses, called tumors. These tumors can either be noncancerous (benign) or cancerous (malignant).

What personality is a cancer?

Cancer is the fourth zodiac sign, and the crab is its symbol. … Cancers have a reputation for being hyper emotional, temperamental, and spiteful. Cancers, in additional to being devoted, are extremely fond of their loved ones, often to an unhealthy degree.

Why is cancer bad?

Cancer cells or tumors in organs or the bloodstream can disrupt organ function. They may destroy healthy cells in organs, block their nutrient or oxygen supply, and allow waste products to build up. If cancer becomes severe enough that it impairs or prevents vital organ function, it can result in death.

Who was the first person with cancer?

The earliest cancerous growths in humans were found in Egyptian and Peruvian mummies dating back to ∼1500 BC. The oldest scientifically documented case of disseminated cancer was that of a 40- to 50-year-old Scythian king who lived in the steppes of Southern Siberia ∼2,700 years ago.

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Can cancer ever be cured?

Some doctors use the term “cured” when referring to cancer that doesn’t come back within five years. But cancer can still come back after five years, so it’s never truly cured. Currently, there’s no true cure for cancer. But recent advances in medicine and technology are helping move us closer than ever to a cure.

What animal is associated with cancer?

Though some depictions of Cancer feature a lobster or crayfish, the sign is most often represented by the crab, based on the Karkinos.