良性腫瘤指腫瘤細胞未發生轉移與侵入周遭組織的情形，反之則稱為惡性腫瘤，多數會影響生理功能的腫瘤都是惡性腫瘤。
世卫组织和国际癌症研究机构与包括国际原子能机构在内的其他联合国组织和伙伴合作，以便：
维基百科中的醫學内容仅供参考，並不能視作專業意見。如需獲取醫療幫助或意見，请咨询专业人士。詳見醫學聲明。
大脑和神经系统问题。癌症会压迫到附近的神经，导致身体某一部位疼痛和丧失功能。累及大脑的癌症可能导致头痛和卒中样体征和症状，例如身体一侧无力。
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。
疲劳。癌症患者的疲劳有很多原因，但通常可以控制。与化疗或放疗相关的疲劳很常见，但通常是暂时的。
Hormones are very important brokers in intercourse-associated cancers, like most cancers of the breast, endometrium, prostate, ovary and testis in addition to of thyroid most cancers and bone cancer.[95] As an example, the daughters of women which have breast cancer have considerably greater amounts of estrogen and progesterone as opposed to daughters of women without the need of breast cancer. These higher hormone degrees could explain their better danger of breast most cancers, even within the absence of the breast-cancer gene.
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。
The Dutch professor Francois de la Boe Sylvius, a follower of Descartes, believed that all illness was the result of chemical processes and that acidic lymph fluid was the reason for cancer. His contemporary Nicolaes Tulp believed that cancer was a poison that little by little spreads and concluded that it was contagious.[230]
Some sorts of most cancers are named for the scale and form in the cells below a microscope, like huge mobile carcinoma, spindle cell carcinoma and little-mobile carcinoma.
On 2 December 2023, Nano Currently revealed a groundbreaking discovery involving "NK mobile-engaging nanodrones" for specific most cancers treatment. The development of "NK 癌症 mobile-partaking nanodrones" signifies an important leap forward in most cancers remedy, showcasing how chopping-edge nanotechnology and immunotherapy might be put together to target and remove most cancers cells with unparalleled precision.
身体的化学变化。癌症会打乱您体内正常的化学平衡，增加出现严重并发症的风险。化学失衡的体征和症状可能包括过度口渴、尿频、便秘和意识混乱。
Numerous countrywide medical tips advocate early palliative take care of patients whose most cancers has developed distressing signs or who want assist Dealing with their disease.
作为加速消除宫颈癌全球战略的一部分，提供全球领导和技术援助，支持各国政府及其合作伙伴建立和维持高质量的宫颈癌控制规划；