Water warts and genital warts are two different skin conditions caused by separate viruses. Water warts, known medically as molluscum contagiosum, appear as small, dome-shaped bumps with a central dimple and are caused by a poxvirus. Genital warts, caused by the human papillomavirus (HPV), often have a rough, cauliflower-like texture.
While both can be transmitted through skin contact, including sexual activity, their diagnosis and treatment approaches differ. Seeking a professional medical opinion is important for an accurate diagnosis and appropriate care.
What Are Water Warts (Molluscum Contagiosum)?
Molluscum contagiosum, commonly referred to as water warts, is a skin infection that results in small, raised bumps on the skin. Although it is frequently seen in children, it also affects adults, and when it appears in the genital region, it is often transmitted through sexual contact. It is a localised skin condition that does not affect the internal organs.
The Virus Responsible: Molluscum Contagiosum Virus (MCV)
Water warts are caused by the Molluscum Contagiosum Virus, or MCV. This virus belongs to the poxvirus family, a large family of DNA viruses. The infection is confined to the top layers of the skin and does not spread throughout the body.
Once the bumps have completely cleared, the virus is no longer present in the body, although it is possible to get reinfected through new contact.
Appearance and Symptoms of Water Warts
The most distinct feature of water warts is their appearance. The bumps are typically small, usually between two to five millimetres in diameter. They are firm, raised, and dome-shaped with a smooth, waxy, or pearl-like surface. A key identifying feature is a small dimple or pit in the centre, which is known as umbilication. Inside the bump is a white, waxy core material. The bumps are usually flesh-coloured or pink.
While they are generally painless, they can become itchy, sore, red, or swollen. Scratching or picking at the bumps can cause the virus to spread to surrounding skin, a process called autoinoculation. It can also lead to a secondary bacterial infection, which may cause more significant redness and discomfort.
Common Locations on the Body
In adults, water warts transmitted through sexual contact commonly appear in specific areas. These include the genitals (on the penis or vulva), the lower abdomen, the inner thighs, and the buttocks. However, the bumps can appear on any part of the body, except for the palms of the hands and the soles of the feet.
What Are Genital Warts?
Genital warts are soft growths that appear on the genitals. They are a common type of sexually transmitted infection (STI). While they can cause discomfort, the types of HPV that cause genital warts are considered low-risk and are different from the high-risk types associated with certain cancers.
The Virus Responsible: Human Papillomavirus (HPV)
Genital warts are caused by the human papillomavirus, or HPV. There are more than 100 different types of HPV, but about 90% of genital warts are caused by two specific low-risk types: HPV 6 and HPV 11. It is important to know that these types are not the ones typically linked to cervical cancer or other HPV-related cancers, which are caused by different, high-risk strains of the virus. HPV is one of the most common sexually transmitted infections globally.
Appearance and Symptoms of Genital Warts
Genital warts can vary significantly in appearance. They may appear as small, flesh-coloured or brown bumps. They can be so small that they are not visible to the naked eye. In other cases, they can multiply into large clusters, taking on a rough texture that is often described as resembling a cauliflower. The warts can be raised or flat, and single or multiple.
While many people with genital warts experience no symptoms other than the growths themselves, some may experience itching, discomfort, or bleeding in the genital area.
Common Locations in the Genital and Anal Regions
Genital warts appear in the moist tissues of the genital area. For males, this includes the penis, scrotum, groin, thighs, and inside or around the anus. For females, warts can grow on the vulva, in or around the vagina, on the cervix, and around the anus.
It is also possible, though less common, for genital warts to develop in the mouth or throat of a person who has had oral sexual contact with an infected person.
Key Distinctions at a Glance: A Side-by-Side Comparison
Understanding the main differences between water warts and genital warts can help you know what to look for, but a medical diagnosis is always necessary.
The Causative Virus
The root cause of each condition is a completely different virus. Water warts are caused by the Molluscum Contagiosum Virus (MCV), which is a type of poxvirus. Genital warts are caused by specific strains of the Human Papillomavirus (HPV). This is a fundamental difference that influences how each condition behaves and is managed.
Visual Appearance of Lesions
The visual characteristics are often the clearest distinguishing factor. Water warts are typically uniform in shape—smooth, round, and dome-like with a very specific dimple in the centre. Genital warts are more irregular. They lack the central dimple and often have a rough, uneven, cauliflower-like surface. They can also appear as flat lesions or small stalk-like growths.
Symptoms and Sensations
Water warts are often asymptomatic, meaning they cause no physical sensation, though they can become itchy or irritated. If squeezed, a thick, white substance may be expressed. Genital warts can also be asymptomatic, but they are more commonly associated with itching, a burning sensation, or general discomfort, particularly if they are in a high-friction area.
Long-Term Viral Presence
The way the body handles these two viruses differs significantly. With water warts, once all the lesions have resolved and disappeared, the MCV virus is eliminated from the body. You are no longer infected unless you come into contact with the virus again.
In contrast, HPV can remain in the body in a dormant or inactive state even after visible genital warts have been treated and removed. This means that warts can reappear later, and the virus can still be transmitted to others.
How Are These Conditions Transmitted?
Both conditions are contagious, but their modes of transmission have some differences.
Transmission of Water Warts (Molluscum Contagiosum)
The MCV virus spreads through direct contact. In adults, this often happens through sexual skin-to-skin contact, which is why it is considered a sexually transmitted infection in this context. However, it can also spread through non-sexual means.
This includes sharing personal items that have touched the lesions, such as towels, razors, clothing, or sponges. Furthermore, an individual can spread the infection to other parts of their own body by scratching a bump and then touching another area of skin.
Transmission of Genital Warts (HPV)
Genital warts are transmitted almost exclusively through direct skin-to-skin contact during sexual activity. This includes vaginal, anal, and oral sex. The use of barrier methods like condoms can reduce the risk of transmission, but they do not offer complete protection as HPV can infect skin in areas not covered by a condom. An important point is that HPV can be transmitted even when an infected person has no visible warts or other symptoms.
The Importance of Professional Diagnosis
Attempting to self-diagnose bumps in the genital area is not advisable due to the potential for error and the different implications of each condition.
Why Self-Diagnosis Can Be Unreliable
It can be difficult for an untrained eye to distinguish between water warts, genital warts, and other skin conditions. Bumps in the genital area could also be folliculitis (infected hair follicles), skin tags, pimples, herpes sores, or other less common issues.
Each condition requires a different management plan. An incorrect self-diagnosis can lead to using the wrong treatments, which could be ineffective or even harmful. It can also cause unnecessary anxiety or, conversely, a false sense of security.
What to Expect During a Clinical Examination
Getting a diagnosis from a doctor is a straightforward process. The doctor will ask about your medical history and symptoms. They will then perform a physical examination to look closely at the bumps. In most cases of water warts and genital warts, a diagnosis can be made based on this visual inspection alone.
The characteristic appearance of the lesions is usually enough for a healthcare professional to identify the condition. In rare cases where the diagnosis is uncertain, the doctor might take a small sample of the tissue (a biopsy) to be examined in a laboratory.
An Overview of Management and Treatment Approaches
The management strategies for water warts and genital warts are different, reflecting their distinct viral causes.
Approaches for Water Warts
In many individuals with a healthy immune system, water warts will go away on their own without any treatment. This process, however, can be slow, sometimes taking from several months up to a year or more. Treatment is often recommended for adults with lesions in the genital area to prevent sexual transmission and to stop the bumps from spreading to other parts of the body. Treatment options include:
- Cryotherapy: This involves freezing the bumps with liquid nitrogen.
- Curettage: The bumps are gently scraped off the skin with a small instrument.
- Topical Medications: Certain creams or solutions can be applied to the bumps to help the body fight the virus or to cause the lesion to peel away.
Approaches for Genital Warts
There is no treatment that cures the HPV virus itself, so the goal of treatment is to remove the visible warts and manage any physical symptoms. Even after warts are removed, the virus may remain in the skin cells, so warts can return. Treatment decisions depend on the size, location, and number of warts. Common approaches include:
- Prescription Topical Creams: These are medications applied directly to the warts over several weeks.
- Cryotherapy: Similar to its use for water warts, this procedure freezes the warts.
- Electrocautery: This method uses an electrical current to burn off the warts.
- Surgical Removal: The warts can be cut away by a doctor.
Prevention and Reducing Risk
Taking proactive steps can help reduce the risk of acquiring or spreading these viral infections.
Preventing Water Warts
To prevent the spread of water warts, it is important to avoid direct skin-to-skin contact with the lesions of an infected person. Do not share personal items that come into contact with bare skin, such as towels, clothing, razors, or body sponges.
If you have water warts, try not to scratch, rub, or shave the area, as this can spread the virus to other parts of your body. Keeping the bumps covered with clothing or a waterproof bandage can help prevent transmission to others.
Preventing Genital Warts
Reducing your risk of getting genital warts involves safer sexual practices. The consistent and correct use of condoms during sexual activity can lower the risk of HPV transmission.
The HPV vaccine is also available and is effective in preventing infection from the main types of HPV that cause most genital warts and several types of cancer. Engaging in open communication with sexual partners about sexual health is also a key part of prevention.
Conclusion On Water Warts vs. Genital Warts
It is important to understand that water warts and genital warts are distinct conditions caused by different viruses. They vary in appearance, transmission, and long-term implications. While both can appear in the genital area, their clinical management is not the same.
Misdiagnosis can lead to incorrect treatment and unnecessary concern. For these reasons, obtaining an accurate diagnosis from a healthcare professional is essential for appropriate care and peace of mind.
Our experienced team of healthcare professionals specialises in diagnosing and treating sexually transmitted diseases. From same-day STD testing to personalised treatment plans, we deliver accurate and reliable care tailored to your needs.
Frequently Asked Questions About Water Warts and Genital Warts
How Can You Tell the Difference Between Molluscum and Genital Warts?
The key visual difference is that molluscum bumps (water warts) are typically smooth, round, and dome-shaped with a characteristic small dimple in the centre. Genital warts, on the other hand, tend to be rougher, irregularly shaped, and are often described as having a cauliflower-like texture. A healthcare professional can provide a definitive diagnosis.
Can Molluscum Be Mistaken for Genital Warts?
Yes, it is possible for molluscum contagiosum to be mistaken for genital warts, especially if the bumps are very small or in their early stages. Other skin conditions like pimples, herpes, or skin tags can also cause confusion. This is why a medical evaluation is important for an accurate diagnosis.
What Do Water Warts Look Like on Genitals?
On the genitals, water warts appear as small, firm, raised bumps, usually about two to five millimetres wide. They are typically flesh-coloured or have a pinkish, pearly appearance. The most telling feature is the tiny indentation or dimple in the middle of each bump. They can appear alone or in a small group.
How Do I Know If I Have Genital Warts or Something Else?
The only way to know for certain if a bump is a genital wart or another condition is to have it examined by a doctor. While genital warts have a typical appearance, many other conditions can cause growths in the genital region. A doctor can perform a visual inspection and provide an accurate diagnosis.
Do Genital Warts Have a Dimple in the Middle?
No, genital warts do not have a dimple in the middle. The central dimple, known medically as umbilication, is a classic sign of molluscum contagiosum (water warts). The absence of this dimple is one of the features that helps distinguish genital warts from water warts.
Can You Get Molluscum on Your Private Parts?
Yes, it is common for adults to get molluscum contagiosum on their private parts. When the bumps appear on the genitals, inner thighs, or lower abdomen in adults, the infection is often acquired through sexual skin-to-skin contact.
