We're here to support GPs in identifying the signs of cancer and ensuring patients are referred at the right time
Research breakthroughs, new facilities and staff appointments.
Our in-house hospital magazine.
The Royal Marsden Cancer Charity raises money solely to support The Royal Marsden. With your help we can continue to be there for everyone who needs us.
Find out the latest update on HPV and cervical cancer - what HPV is, the risk of developing a HPV infection and the role of HPV testing in screening for cervical cancer
The Human Papillomavirus is an extremely common virus which affects the skin and moist membranes of the body, including the cervix, throat and anus. It is transmitted through sexual contact, including genital skin-to-skin touching.
There are high risk and low risk types. Whilst the low risk type can cause genital and skin warts, the high risk types are related to the development of cervical intraepithelial neoplasia (CIN) and cancer.
The vast majority of high risk HPV infections don’t cause abnormalities and are usually cleared up by the immune system. However, factors such as immune deficiency and smoking might hinder the immune response and make the woman more susceptible to developing cervical cancer.
The strains HPV 16 and 18 are the types most likely to cause cancer, and account for over 70% of squamous cell carcinomas.
The lifetime risk of developing a high risk HPV infection is a surprising 80%. Most will never know they have been infected because there are no symptoms. It is very difficult to avoid an infection with HPV because it can also transmit via skin to skin contact.
However, 70% of HPV infections clear spontaneously within 1 year, and 90% clear within 2 years. The median duration of new infections is 8 months. Whilst HPV causes 99.7% of all cervical cancers, women who develop high risk HPV lesions only have a 5-15% chance of developing cervical cancer. It will normally take up to 8-10 years after infection of HPV when you are not able to clear it to develop cervical cancer.
The vast majority of us will be able to clear the infection in the meantime and cervical cancer screening (smear) will be able to pick up women at risk.
99.7% of high risk HPV is attributable to developing cervical cancer. The discovery that high-risk HPV as a cause of virtually all cervical carcinoma has prompted international interest in the use of HPV DNA testing in cervical cancer screening programmes.
High-risk HPV testing will be incorporated in cervical cancer screening from 2019. Women with a positive high-risk HPV infection and abnormal smear will be referred for further investigation. HPV testing is also used for surveillance of women treated for high-grade lesions.
The process of cervical screening is to be changed to allow women to benefit from more accurate tests. As part of the new process, the following changes are to be implemented:
There is a need for boys to get vaccinated as it is said that men are a ‘reservoir’ for HPV. A new Gardasil vaccine which covers more HPV strains could potentially be used to vaccinate both boys and girls between the ages of 9-26, though vaccinations at age 12/13 remain the best option to protect the individual before they become sexually active.
