What Is Cancer? - NCI - National Cancer Institute
WebOct 11, 2021 · Cancer is a disease caused when cells divide uncontrollably and spread into surrounding tissues. Cancer is caused by changes to DNA. Most cancer-causing DNA changes occur in sections of DNA called genes. These …
Cancer - Symptoms and causes - Mayo Clinic
WebDec 7, 2022 · Find out the basics about cancer, including symptoms, causes and treatments. Learn steps you can take to prevent cancer.
Cancer - Wikipedia
WebCancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements.
What is Cancer? | Cancer Basics | American Cancer Society
WebThere are two main categories of cancer: Hematologic (blood) cancers are cancers of the blood cells, including leukemia, lymphoma, and multiple myeloma. Solid tumor cancers are cancers of any of the other body organs or tissues. The most common solid tumors are breast, prostate, lung, and colorectal cancers.
Cancer - World Health Organization (WHO)
WebFeb 3, 2022 · Cancer is a leading cause of death worldwide, accounting for nearly 10 million deaths in 2020 (1). The most common in 2020 (in terms of new cases of cancer) were: breast (2.26 million cases); lung (2.21 million cases); colon and rectum (1.93 million cases);
Comprehensive Cancer Information - NCI
WebNCI is the nation’s trusted source for cancer information. We are here for you with information about causes and risk factors, symptoms, how cancer is diagnosed, and treatment options. Find a Cancer Type. Treatment. Side Effects. Causes & Prevention. Diagnosis & Staging. Find a Clinical Trial.
Cancer: Types, Causes, Treatment, and Prevention - Healthline
WebJan 17, 2023 · Cancer is a large group of diseases that occur when abnormal cells divide rapidly and can spread to other tissue and organs. These rapidly growing cells may cause tumors. They may also disrupt...
All About Cancer | American Cancer Society
WebLearn about cancer at the American Cancer Society. Find information for specific cancer types: breast, colon, lung, prostate, skin, and more.
Understanding Cancer | What Is Cancer? | American Cancer Society
WebDonate with Confidence. Cancer information, answers, and hope. Available every minute of every day. In the United States, 1 in 3 people will be diagnosed with cancer during their lifetime. Here is some information to help you better understand what cancer is.
Understanding Cancer - NCI
WebWhat Is Cancer? Understand how cancer cells differ from normal cells and genetics changes that cause cancer to grow and spread. Cancer Statistics. Basic information about cancer statistics in the United States and how they are used to understand the impact of cancer on society and to develop strategies that address the challenges that cancer poses.
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