PRACHI GURUDIWAN,JHARNA MAITI,SOUMI DE
DOI: https://doi.org/cancer. These aberrant cells have the ability to grow into secondary tumors, which increase the tumor burden, and spread to surrounding and distant organs. Defects in replication machinery that result in errors in DNA replication and genetic material changes that can be inherited or brought on by external factors are the main causes of loss of control over cell division. As people age, their risk of developing cancer rises. When there is an abnormality in the regulation of cell division, cells actively divide and form tumors, which are masses of tissue.Carcinoma (originating from epithelial cells), Sarcoma (originating from connective tissues), Leukemia (originating from blood cells), and Lymphoma (originating from immune cells) are the general categories into which cancers can be divided. Carcinogens are substances that have the ability to cause cancer in living things. Radiation, chemicals, and microbes are a few of the most prevalent carcinogens. By causing mutations in DNA, radiation and chemicals cause tumors to form. One of the main causes of cancer is chemicals. For instance, 80% to 90% of lung cancers are caused by chemicals in tobacco smoke. It has been discovered that bacteria and viruses can both cause cancer.
