Depends on Cancer
The symptoms (sx) of cancer depend on the cancer type, stage, extent of disease, individual person, & treatment (etc).
Some cancers are asx & may be observed (eg, cll
). While others may be highly sx (shortness of breath in lung cancer
or GI bleeding in colon cancer
) & require multi-modality (surgery, chemo, radiation, etc) treatment. Some "cancer" sx are present in other diseases as well.