HPV (Human Papillomavirus)
What is HPV (Human Papillomavirus)?
HPV is a common virus that can be found on skin and spread through skin contact. There are over 200 types of HPV. Over 30 types cause infections in genital area and spread through sexual contact.
These genital types can be classified into 2 groups: high and low risk. High risk group refers to types that can cause cervical cancer and about 70% of cervical cancer is commonly caused by genotype 16 and 18. Meanwhile, low risk group refers to types that cause genital warts and about 90% of genital warts are caused by genotype 6 and 11.
Quick Facts on HPV
- There are 400 new cases of cervical cancer in Hong Kong every year.
- Equivalent to 35,000 cases every years in Hong Kong.
- Approximately 11,000 cases of cervical cancer are diagnosed in US each year.
- HPV is not noticeable and therefore can be unknowingly transmitted to another sexual partner through skin and sexual contact.
- In our centre, we found that 65% of non-Chinese patients carries one or multiple type of HPV.
- Genital HPV is spread through skin contact, not through body fluid.
- There are over 200 types of HPV.
- Over 30 of types are sexually transmitted and cause infections in genital area.
- Genital HPV infection is the most STD, account for > 1/3 of all new STD infections.
- Compared to ~55% of the local population carries HPV
- Between 70% - 80% of men and women have been infected with genital HPV at some time in their life.
- Approximately 1% of male will develop genital wart annually.
- Over 4,000 women die of cervical cancer in US each year.
- Pap smear test is the prevailing method for screening cervical dysplasia, which can combine with an HPV DNA test for women over age 30 to better detect cervical cancer.