Symptoms and signs of cancer depend on the type of cancer, where it is located, and/or where the cancer cells have spread. For example, breast cancer may present as a lump in the breast or as nipple discharge while metastatic breast cancer may present with symptoms of pain (if spread to bones), extreme fatigue (lungs), or seizures (brain). A few patients show no signs or symptoms until the cancer is far advanced. However, there are some signs and symptoms, although not specific, which usually occur in most cancer patients that are fairly easy for the person to detect. They are as follows:

Fever (no clear infectious source, recurrent or constant)

Fatigue (not relived by rest)

Weight loss (without trying to lose weight)

Pain (usually persistent)
...more