You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Most common cause of CA cervix: and explain in detail?
Ans. (b) HPV 16 and 18Ref. Shaws 15th ed, / 952* Women with STD, HIV infection, herpes simplex virus 2 infection, human papilloma virus (HPV) infection (16, 18, 31, 33) or condylomata have a high predisposition to cancer.* Of these, HPV is now considered the most important cause, most commonly cause by HPV 16 and 18* Most HPV infection 16, 18 are symptomless in young women and clear within 2 years.* Persistent infection is the cause of cancer of the cervix in 70-90% cases.