Warts: Are They Contagious and What to Do? - Dermatology

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Wart with a scab-like appearance


I would like to ask the doctor about a situation that occurred today while investigating a case.
I had contact with a wart on the individual's arm, but I'm not sure if it is indeed a wart (the image can be found at the provided link).
I am concerned that it might be a viral wart and could potentially spread to my colleagues and family.
Thank you, doctor.

Mr. Wu, 20~29 year old female. Ask Date: 2023/06/02

Dr. Wu Yuxin reply Dermatology


Even warts are not necessarily contagious through contact; the likelihood is higher if there is a wound on the skin.
It is recommended to clean the area thoroughly immediately in similar situations.

Reply Date: 2023/06/02

More Info


Warts are benign growths on the skin caused by the human papillomavirus (HPV). They can appear anywhere on the body but are most commonly found on the hands, feet, and face. The concern about warts being contagious is valid, as they can indeed spread from person to person through direct contact or indirectly through contaminated surfaces.
When you come into contact with a wart, the virus can enter your body through small cuts or abrasions in the skin. This is why it is important to avoid touching warts, whether they are on your body or someone else's. The virus can also survive on surfaces like towels, floors, and swimming pool areas, making it possible to contract warts without direct skin-to-skin contact.

In terms of the specific wart you encountered during your investigation, it is essential to note that not all skin lesions are warts. Other conditions, such as moles, skin tags, or even more serious skin conditions, can resemble warts. Therefore, it is crucial to have any suspicious skin growth evaluated by a healthcare professional for an accurate diagnosis.

If you suspect that you have come into contact with a wart, here are some steps you can take to minimize the risk of transmission:
1. Wash Your Hands: Immediately wash your hands with soap and water after contact with any skin lesion. This helps to remove any potential virus from your skin.

2. Avoid Touching Your Face: Refrain from touching your face, especially your eyes, mouth, or any open wounds, until you have thoroughly washed your hands.

3. Keep Skin Intact: If you have any cuts or abrasions, keep them covered with a bandage to prevent the virus from entering your skin.

4. Monitor for Symptoms: Keep an eye on your skin for any new growths or changes. If you notice any warts or suspicious lesions developing, consult a healthcare provider.

5. Educate Others: Inform your colleagues and family members about the potential for warts to spread, so they can take precautions as well.

If you do develop warts, there are several treatment options available, including over-the-counter topical treatments, cryotherapy (freezing), laser therapy, and surgical removal. However, many warts resolve on their own without treatment, as the immune system can often clear the virus over time.

In conclusion, while warts are contagious, taking preventive measures can significantly reduce the risk of spreading the virus. If you have concerns about a specific lesion or potential exposure, it is always best to consult with a healthcare professional for personalized advice and treatment options.

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