There is no actual proof of cervical epithelial cellz transformation induced by bacteria. However, there are some correlations of bacterial infections with HPV-induced cell transformation. You may find this paper interesting.

https://doi.org/10.1007/s00284-018-1439-7

There is no mentioned in the book and statistically probed study, which is dictate the role of Bacteria in Cervix cancer. However there is a milue in the cervix prepared with help of bacteria, which is protective. However bacteria which support the growth of the HPV oncogenic variants, can cause the cervix cancer. Bacterial alone infections may support the cell transformation but cause of cancer is not known. Only few studies are on chlamydia and cell transformation in Cervix.

can be at least in theory due to inflammation, regeneration but it would be great if this can be studied and proved.

I am not aware of anything I. The literature but we have seen women having cervical changes after having babies, is it becouse of undected bacterial infections or combination with trauma caused to the cervix during labour and the regeneration process I don't k ow but I am aware of that happening esp in women that had Hpv that only caused cervical changes after they had babies. Pregnancy, viral infections can suppress the immune system and bacterial infections and trauma may start cervical changes, that from my clinical experience.

Long term HPV infection is the key factor for normal cervical cells to become carcinogenic, from low grade precancerous CIN 1-3 to cervical cancer. Having No HPV infection translates to a phenomenally low risk of developing cervical cancer. However as Tiatou said there can be co-factors that can push the process further towards cancerous but these can be infection leading to inflammation to poor immune system and smoking etc but all require that HPV infection. Non-HPV related cancers are a tiny minority and come from a population who have poor immune responses etc HIV infected individuals but it is still an area that needs proper research around it

@ Safana a Sattar

Please have a look at the following RG links and PDF attachment.

Article Role of Lactobacillus in cervical cancer

Article Bacterial Vaginosis and Cervical Intraepithelial Neoplasia: ...

Article Association between Bacterial Vaginosis and Cervical Intraep...

Article Bacterial vaginosis is associated with uterine cervical huma...

Thanks!

Please also go through the following RG links and PDF attachments.

Article Chlamydia trachomatis infection and risk of cervical intraep...

Article Chlamydia trachomatis infection: Implications for HPV status...

Article Infections of Chlamydia trachomatis and Mycoplasma hominis a...

Article Evidence for Chlamydia trachomatis as a Human Papillomavirus...

Article Chlamydia Trachomatis Infection-Associated Risk of Cervical ...