癌細胞擴散至距離原始腫瘤遙遠的器官及組織。此時癌細胞流竄於全身，必需借助循環全身的化學治療藥物治療。安寧照護將是治療選項之一。
癌症的症状多样，除可引起局部压迫和阻塞等症状外，还可因浸润和转移而导致相应的临床表现，有时会出现贫血、发热、体重下降、夜汗、感染、恶病质等全身表现。
The findings that end result depend on most cancers's style and location. Handful of signs and symptoms are distinct. Many regularly arise in people who produce other circumstances. Cancer might be hard to diagnose and may be regarded a "great imitator".[33]
Diagnosing a whole new most cancers within a Expecting female is tough, in part for the reason that any symptoms are commonly assumed for being a normal soreness associated with pregnancy. Because of this, cancer is usually identified in a relatively afterwards stage than ordinary.
另類醫學的治療方式包含許多種類的系統或療法，此類治療以現代醫學標準的觀點來看，通常不被認為是有效及安全的。但是醫師仍然可以利用這樣的治療方法來「補充」標準治療所不能提供的，例如身體的舒適或是心靈上的平靜，重燃起患者對治療癌症的希望。
在治疗后数月或数年后发生，有口干、皮肤及皮下组织增厚、神经损伤、心肺功能异常（如干咳、气喘等）、胃肠功能紊乱（如恶心、呕吐、体重下降等）等表现，症状较为严重且长久，应尽量避免。
健康饮食。选择富含水果和蔬菜的饮食。选择全谷物和瘦肉蛋白质。限制摄入加工肉类。
由癌症引起的慢性疼痛幾乎都與癌症本身或治療過程（手術、放射線治療、化療）所持續造成的組織損傷有關。癌症患者的疼痛並沒有明顯的產生原因。許多發生嚴重疼痛症狀的癌症患者常常已經接近生命的終點，這時進行姑息疗法會是比較好的選擇。雖然社會上普遍對使用鴉片類麻醉劑的觀感不佳，但在癌末病患的治療上，主要的考量是盡量使患者感到舒適，無論使用鴉片類麻醉劑、手術或物理療法，甚至不應考慮醫療資源的支出，而要盡力使病患能得到最好的照顧。
從正常組織到腫瘤組織的形態變化 癌組織在顯微鏡下具有鮮明的外觀，主要是有大量分裂中的細胞、變大的細胞核、細胞大小與形狀改變、失去細胞特化的特徵、失去正常組織結構和細胞間的邊界變的不明顯。免疫組織化學染色法和其他分子生物學標記方法可根據腫瘤細胞的特徵提早發現腫瘤，而有助於診斷和預後。
Radiation can cause cancer in 癌症 most parts of the human body, in all animals and at any age. Small children are 2 times as more likely to build radiation-induced leukemia as Grown ups; radiation exposure right before birth has 10 periods the outcome.[seventy six]
癌症发病率随着年龄的增长而急剧上升，这很可能是因为特定癌症的风险随着年龄的增长而增加。随着年龄的增长，整体风险不断积累，而同时细胞修复机制的有效性则呈下降趋势。
Cancers are often named making use of -carcinoma, -sarcoma or -blastoma being a suffix, While using the Latin or Greek word for that organ or tissue of origin as the root. For instance, cancers from the liver parenchyma arising from malignant epithelial cells is known as hepatocarcinoma, when a malignancy arising from primitive liver precursor cells is known as a hepatoblastoma as well as a most cancers arising from fat cells is termed a liposarcoma.
Hi there Doctor hopes to be your most trusted ally to create far more educated decisions also to live more healthy and happier life.
发热：以低热多见，通常不需处理。典型淋巴瘤患者可有发热、盗汗、体重减轻症状。