Cancer also called malignant tumors. Cancer occurs when the cell grouped and growth abnormally. Normally, in our body the old cells will die and the new cells will growth. The new cells growth and take over the old cells place. So when our body keep produced new cells in a part of our body and  at the same time the old cells that already in our body did not died. The new cells and old cells will grouped together in a part of our body then the cancer tumor will occur.The cancer may spread to other organs through the bloodstream or lymph nodes system.

Malignant tumors is a cancer tumors but a Benign tumors is not a cancer. Malignant tumors growth very quickly. It can invade to others organs or tissues but benign tumors will not. Benign Tumors growth very slow and it can’t spread to others organ or tissue.  More about Malignant tumors and Benign tumor, you can refer here – Cancer Tumors

There is more than 100 types of cancer in the world. The most common cancer is Lung Cancer, Breast cancer,Kidney Cancer, Bladder Cancer, Uterine Cancer, Liver Cancer, Cervical Cancer and etc. Due to the latest research, the most common cancer for women is breast cancer. For man is bladder cancer and prostate cancer.

Each different cancer have different signs and symptoms. When the cancer is in the early stage the sign and symptoms did not appear. However, cancer can be detected from medical imaging and screening test.

If you guess you have a cancer, you should go to hospital and run a test as fast as possible.