Samsung Leejung Women's Clinic Doctor's Column
Obstetrics & Gynecology Column

Positive HPV Result: How Should It Be Managed?

The stages from a positive HPV result to cervical dysplasia, how PDT photodynamic therapy works, and how to manage things after treatment.

Published 2026-11-02 Updated 2026-11-02 Reviewed by Hyejeong Lee, Medical Director · Obstetrics & Gynecology Specialist

When a health check-up shows a positive HPV result, cervical dysplasia or a CIN1 or CIN2 finding, cancer tends to be the first worry. Cervical cancer, however, develops through precancerous lesion stages, so such a finding does not mean cancer straight away, and responding according to the stage allows it to be managed adequately.

This article sets out how HPV infection progresses to cervical cancer, how PDT photodynamic therapy works, and how to manage things after treatment.

01

How does a positive HPV result progress to cervical cancer?

Key point
Even when HPV infection occurs, most cases clear naturally through the immune response. The risk of progressing through the stages of dysplasia (CIN1 to CIN3) and on to cervical cancer rises only when a high-risk type such as HPV16 or 18 persists for 2 years or more.

The main cause of cervical cancer is the human papillomavirus, HPV, and even when infection occurs, most cases clear naturally through the immune response. When a high-risk type such as HPV16 or 18 leads to persistent infection, however, it develops into dysplasia, which is divided into three stages, CIN1, CIN2 and CIN3, according to how far it has progressed. Once it reaches a severe stage such as CIN3, it can progress through carcinoma in situ to cervical cancer.

With HPV infection, follow-up is prioritised at first, bearing in mind that it may clear by itself. If regular check-ups detect a high-risk type repeatedly and it has not cleared for close to 2 years, however, active treatment is recommended instead of follow-up, to reduce the risk of it leading to dysplasia.

  • CIN1 — an early stage with mild changes in cervical cells; follow-up is prioritised
  • CIN2 — moderate dysplasia; treatment is considered depending on whether it persists
  • CIN3 — severe dysplasia; if left alone it can progress through carcinoma in situ to cervical cancer
02

How does PDT photodynamic therapy work?

Key point
PDT photodynamic therapy is a non-invasive treatment in which a photosensitiser is applied and a laser of a specific wavelength is then used to remove only the dysplastic tissue selectively. Normal cells and the function of the cervix are preserved as they are.

LEEP (cone excision), which cuts out or burns cervical tissue, shortens the cervix and can raise the risk of infertility or preterm birth. PDT instead uses a non-invasive laser to remove only the dysplastic tissue, preserving cervical function and helping to keep pregnancy and childbirth possible. The equipment can also be used at the CIN1 or CIN2 stage, making it a means of intervention that reduces the risk of progression to CIN3 or invasive cancer if the condition were left alone.

The light of the PDT laser acts not only on the lesion but across the whole surrounding micro-area, which can lower the likelihood of recurrence. It also has an anti-inflammatory action, and with just 7 minutes of irradiation it is also used to treat vulvar symptoms such as itching and vaginal dryness. A study analysing controlled trials involving 973 participants also found that photodynamic therapy significantly improved lesion remission rates and HPV clearance rates.

  • Preserves normal cells — removes only the lesion tissue selectively, leaving the surrounding normal tissue
  • Preserves cervical function — no change in cervical length, so less effect on pregnancy and childbirth
  • Anti — inflammatory effect — 7 minutes of irradiation alone is used to treat vulvar itching and vaginal dryness
Research material related to Positive HPV Result: How Should It Be Managed?
Related research
03

What still needs checking after treatment?

Key point
Even when PDT treatment is effective, a body environment that has been exposed to HPV still carries a possibility of recurrence of at least 1%. For that reason, management needs to continue once treatment is complete, through regular check-ups and through HPV vaccination.

However effective the PDT laser may be, a body that has already been infected with HPV carries a possibility of recurrence of at least 1% at any time. After treatment, regular checks are needed to see whether HPV is detected again, with re-treatment where needed. If checks are delayed, it can lead on to cervical cancer, so regular check-ups remain essential.

Even where HPV infection has already occurred, receiving vaccination after treatment is helpful, because with so many types of HPV a cross-protective effect from the vaccine can be expected. Even with a positive HPV result, management and treatment differ according to the risk type, and dysplasia treatment also needs to be designed differently according to age and speed of recovery.

Hyejeong Lee, Medical Director
Doctor's view

How the doctor decides

Hyejeong Lee, Medical Director · Obstetrics & Gynecology Specialist

I design treatment differently according to the risk type

I do not set the direction of treatment from a positive HPV result alone. Whether to choose follow-up or active treatment depends on whether it is a high-risk type and whether the infection is persistent, so I check the type first and judge from that whether observation or treatment is needed.

I keep checking for recurrence after treatment

I do not consider management finished when treatment ends. Because recurrence cannot be fully ruled out in a body that has been exposed to HPV, I advise patients to keep checking for recurrence through regular check-ups, and where needed we decide together when to repeat treatment.

I consider age and speed of recovery together

I judge that treatment design differs with age and speed of recovery, even at the same stage of dysplasia. Rather than a uniform standard, I choose to look at each patient's condition first.

I also recommend vaccination after treatment

I do not tell patients that a vaccine is meaningless just because they have already been infected. Because there are many types of HPV, I tend to recommend vaccination after treatment as well, with its cross-protective effect in mind.

Summary

In summary

A diagnosis of a positive HPV result or cervical dysplasia does not mean cancer straight away, and most cases clear naturally with follow-up alone. Where a high-risk type persists for 2 years or more, or a stage of dysplasia is confirmed, however, PDT photodynamic therapy can manage the lesion while preserving cervical function. Management through regular check-ups and vaccination needs to continue after treatment, so if you have received such a finding, it is better not to leave it but to have the type and duration of infection checked at a consultation.

FAQ

Frequently asked questions

QDoes a positive HPV result always mean treatment is needed?
A

No. Most HPV infections clear naturally through the immune response, so at first follow-up is used to check whether it clears, and active treatment is considered when a high-risk type persists for close to 2 years.

QHow does PDT photodynamic therapy differ from LEEP?
A

LEEP cuts out or burns tissue, which shortens the cervix and can raise the risk of infertility and preterm birth. PDT uses a non-invasive laser to remove only the lesion tissue, preserving cervical function.

QCan it come back after treatment?
A

A body that has already been exposed to HPV carries a possibility of recurrence of at least 1%, so after treatment, management is needed that checks for recurrence through regular check-ups and adds a cross-protective effect through vaccination.

Hyejeong Lee, Medical Director
Medical review
Hyejeong Lee, Medical Director · Obstetrics & Gynecology Specialist
This content is general medical information and may not apply to every individual. Diagnosis and treatment are decided through a consultation.