RIVM Guideline on Genital Warts Explained
- J.A.T.W. Rosenberg; Wart, Pigmentation & Aging Specialist
- 2 days ago
- 6 min read
55 Questions and Answers About Genital Warts — Explained in Clear Language
People who search online for reliable information about genital warts often end up reading complex medical guidelines full of technical terminology.
But what do those guidelines actually say?And what does it mean for someone who has discovered a small wart or bump and is worried about:
infection
their partner
treatment
or recurrence?
In this article, we explain the RIVM guideline on genital warts step by step in clear language.
Not overly technical — but medically accurate.
This guide walks you through the most important questions about:
HPV
contagiousness
symptoms
partners
pregnancy
treatment
recurrence
1. What are genital warts?
Genital warts are benign growths in the intimate area.
The medical terms are:
anogenital warts
condylomata acuminata
They are caused by certain types of the Human Papillomavirus (HPV).
2. Are genital warts a sexually transmitted infection?
Yes.
Genital warts are considered a sexually transmitted infection (STI).
The main transmission routes are:
sexual contact
skin-to-skin contact in the genital area
contact with infected skin or viral particles
3. Are genital warts dangerous?
Usually not.
According to the guideline, genital warts are generally benign.
However, they can still have a significant impact on people’s lives, including:
embarrassment
insecurity
discomfort during sex
psychological stress
an increase in the number of warts
So while they are usually not medically dangerous, they can still be emotionally distressing.
4. Which HPV types cause genital warts?
Most genital warts are caused by:
HPV type 6
HPV type 11
According to the guideline, these types cause more than 90% of anogenital warts.
They are considered low-risk HPV types, meaning they carry a low risk of cancer.
5. Is HPV the same as genital warts?
No.
HPV is the virus.Genital warts are a possible visible symptom of the virus.
This means:
you can carry HPV without having warts
HPV can cause genital warts
not everyone with HPV develops warts
6. How common is HPV?
Very common.
According to the guideline, more than 80% of sexually active people will be infected with one or more HPV types during their lifetime.
This makes HPV one of the most widespread viral STIs globally.
7. Does everyone with HPV develop genital warts?
No.
One important point from the guideline is that most HPV infections cause no symptoms at all.
Many people:
have no symptoms
notice no skin changes
do not know they carry HPV
Only a small percentage develop visible genital warts.
8. How common are genital warts in the Netherlands?
Genital warts are relatively common.
According to the guideline, in 2020 Dutch general practitioners diagnosed 46,494 cases of genital warts.
They are also regularly diagnosed at Sexual Health Clinics.
9. At what age are genital warts most common?
They occur most frequently in young adults.
According to the guideline:
most cases occur between ages 15 and 29
The average age for women and heterosexual men is typically 24–27 years.
10. What do genital warts look like?
Genital warts can appear in several forms.
The guideline describes:
cauliflower-like growths
small papules
thickened keratotic warts
flat lesions
Their color can vary from:
pink-red
to grey-white
This means genital warts do not always look the same.
11. Are genital warts always cauliflower-like?
No.
This is a common misconception.
While some warts have a cauliflower-like appearance, they can also be:
small and smooth
flat
skin-colored
grouped together
Because of these variations, they are sometimes recognized late.
12. Where do genital warts usually appear?
In men
penis
scrotum
urethral opening
perianal area
In women
vulva
vaginal opening (introitus)
clitoris
perineum
perianal area
They may sometimes also appear:
inside the vagina
on the cervix
13. Do warts around the anus always mean anal sex?
No.
The guideline clearly states that warts around the anus do not automatically indicate anal sexual contact.
However, intra-anal warts may suggest that possibility.
14. How many warts do people usually have?
According to the guideline, genital warts are often multifocal, meaning they appear in several locations.
Typically, people have around:
5 to 15 lesions at the same time.
15. How long does it take before genital warts appear?
The incubation period is usually:
1 to 8 months
most commonly around 3 months
However, the guideline notes that in some cases it can take much longer.
16. Can HPV remain dormant for years?
Yes.
This is one reason people are often surprised and think:
"How did this suddenly appear?"
HPV can remain latent for a long time.
This means:
no symptoms
no visible warts
warts appearing later
17. Are genital warts contagious?
Yes.
Genital warts are contagious.
The primary transmission routes are:
sexual contact
skin-to-skin contact in the genital region
18. How contagious are genital warts?
According to the guideline, HPV is highly contagious.
Research shows:
60–80% of sexual partners of people with genital warts are also infected
the transmission risk during a single sexual encounter is estimated around 60%
This is relatively high.
19. Are you contagious only when warts are visible?
No.
According to the guideline, virus shedding may still occur even when no visible lesions are present.
This means transmission can occur even when:
no visible warts remain
no subclinical lesions are visible
20. When is the risk of infection highest?
The risk is highest during the visible wart stage, especially with new warts.
According to the guideline, newly formed warts are usually more contagious than older ones.
Notes on treatment creams (Rosenberg clinical observations)
The following notes are not part of the official RIVM guideline but are based on clinical experience and published medical information.
Imiquimod (for example Aldara)
Imiquimod often causes local skin reactions, including:
redness
itching
burning
crusting
small wounds
Some patients also experience:
flu-like symptoms
fatigue
headaches
In rare cases:
gastrointestinal symptoms
autoimmune flare-ups
Because the cream spreads easily, healthy skin may sometimes become irritated or damaged, especially in the genital area.
Podophyllotoxin
Podophyllotoxin may cause:
irritation
burning sensation
redness
pain
ulceration
Accurate application is important because the medication can damage surrounding healthy skin if applied incorrectly.
46. What are the side effects of cryotherapy?
According to the guideline, the most common side effects are:
pain
blister formation
Additional possible effects include:
pigmentation changes
scarring
(Note from Rosenberg: The CryoPen is a precise form of cryotherapy that many patients report as less painful than traditional cotton-swab freezing methods.)
47. How effective is cryotherapy?
According to the guideline:
clearance rate: 60–90%
recurrence rate: 20–40%
48. How often do genital warts return?
Recurrence is relatively common.
The guideline mentions a recurrence rate of around 34%.
49. Why do genital warts come back?
HPV may remain present in:
skin tissue
hair follicles in the anogenital region
This can lead to recurrence even after treatment.
50. When should a patient be referred to a specialist?
Referral may be recommended in cases such as:
children with genital warts
very large numbers of warts
pregnancy
immunosuppression
treatment-resistant lesions
internal locations
diagnostic uncertainty
suspicion of neoplasia
Summary
The RIVM guideline shows that genital warts are common and usually benign, primarily caused by HPV types 6 and 11.
They are contagious, but not everyone infected with HPV develops visible warts.
Many infections remain asymptomatic.
Treatment mainly focuses on removing visible warts and reducing discomfort and psychological stress.
Cryotherapy is a well-known treatment method, but recurrence can occur.
Clear explanation and realistic expectations are therefore important.
Medical Source and Reference
The information in this article is based on the official guideline of the National Institute for Public Health and the Environment (RIVM) on anogenital warts and HPV.
This guideline is used by:
physicians
dermatologists
public health services
sexual health clinics
Original source:RIVM / LCI guideline HPV – anogenital wartshttps://lci.rivm.nl/richtlijnen/hpv-anogenitale-wratten
Have you discovered a wart or bump?
Many people first search online after discovering a small bump or wart in the genital area.
Because genital warts can appear in many different forms, it can sometimes be difficult to determine what it actually is.
A specialist can often quickly determine whether it concerns:
genital warts
skin tags
another skin condition
At CryoPen Genital Wart Specialist Rosenberg, patients are seen daily for evaluation and treatment of genital warts.
Questions or appointment
WhatsApp:+31 (0)653 27 60 70
You can also schedule an appointment for evaluation and possible treatment.
Read also
Huidspecialisten.com CryoPen (Genital) Wart Specialist Rosenberg
Amsterdam • Blaricum • Utrecht
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