What Is Cancer? - NCI - National Cancer Institute
网页2021年10月11日 · 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
网页2022年12月7日 · Find out the basics about cancer, including symptoms, causes and treatments. Learn steps you can take to prevent cancer.
What Is Cancer? Symptoms, Causes & Types - Cleveland Clinic
网页Cancer is when abnormal cells grow out of control and spread to other areas of your body. It can start almost anywhere, including skin, organs, bones and blood.
American Cancer Society - Information and Resources about Cancer ...
网页Dedicated to helping people who face cancer. Learn about cancer research, patient services, early detection, treatment and education at cancer.org.
Cancer - World Health Organization (WHO)
网页2022年2月3日 · Cancer is a leading cause of death worldwide, accounting for nearly 10 million deaths in 2020, or nearly one in six deaths. The most common cancers are breast, lung, colon and rectum and prostate cancers.
What Is Cancer? | Cancer Basics | American Cancer Society
网页What Is Cancer? Cancer affects 1 in 3 people in the United States. Chances are that you or someone you know has been affected by cancer. Here is some information to help you better understand what cancer is. On this page. [show] You are made up of trillions of cells that over your lifetime normally grow and divide as needed.
Cancer - Wikipedia
网页Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [2] [7] These contrast with benign tumors, which do not spread. [7] Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. [1]
Comprehensive Cancer Information - NCI
网页NCI 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.
All About Cancer - American Cancer Society
网页Learn about cancer at the American Cancer Society. Find information for specific cancer types: breast, colon, lung, prostate, skin, and more.
Understanding Cancer - NCI
网页Learn about the factors that contribute to the unequal burden of cancer and which population groups are affected. This page is a gateway to basic information about how cancer develops, trends in cancer cases and deaths, …