Warts are small, grainy, noncancerous skin growths caused by human papillomavirus (HPV). The virus can be transmitted through direct and indirect contact, such as touching contaminated skin or articles. Transmission is fast through disrupted and soft skin.
The main characteristic symptom is the appearance of lesions that appear as skin growth with an irregular surface. In some cases, these lesions may itch, ache, and bleed. Individuals with a weakened immune system and children between the ages of 12 and 17 are more susceptible to this infection.
Almost two-thirds of wart cases resolve themselves. Treatment options include topical medications and some in-clinic therapies, such as cantharidin, cryosurgery, curettage, excision, photodynamic therapy, and laser treatment.
Overview
Key Facts
Symptoms
Causes
Risk factors
Diagnosis
Prevention
Specialist to visit
Treatment
Home-care
Complications
Alternatives therapies
Living with
FAQs
References
Frequently Asked Questions
The prognosis of warts varies from individual to individual. Many warts disappear on their own, which can take several weeks to years. However, recurrences are also seen in most cases.
Yes, warts are caused by viruses, which can be easily transmitted through touch.
Warts are generally not painful. However, warts present in frequently pressed locations, such as the fingers and soles of the feet, often ache.
Warts are skin growths that are caused by viruses. They are contagious but do not cause cancer. However, very few virus strains are reported to be linked with certain types of cancer.
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Warts are lesions/bumps in the skin and the thin skin that covers the inside surface of parts of the body, such as the nose and mouth.
Warts have a very long incubation period (the period from virus exposure to the onset of symptoms). It generally ranges from 1 to 6 months but can even take up to 12 months.
These lesions appear as skin growth with an irregular surface. Their size can range from 1 mm to several cm.
The other general signs and symptoms of warts include:
The presence of small and rough bumps on skin
Appearance of long threads or thin fingers on the skin
The lesions can appear alone (solitary) or in groups (mosaic). The most common sites of these warts are hands and feet. However, they occur in other body parts, depending on the type.
The characteristic of these lesions depends upon the type of the warts and include:
1. Common warts (vurruca vulgaris)
Dome shaped nodules
Mainly located on fingers, hands, knees, elbows, or any other sites of trauma
It can also appear as thin and long outgrowths around the eyelids and lips
2. Genital warts
Small bumps in and around the genital area
Cause burning sensation and itching/irritation in the genital area
Learn more about genital warts.
3. Foot warts (plantar warts)
Deep penetrating bumps on the soles of the feet
Cause pain and difficulty while walking
Create a feeling of having something in the shoes
4. Anal warts
Tiny spots or growths around and inside the anus
Additional symptoms include itching, bleeding, mucus discharge, and a feeling of a lump in the anal area
5. Flat warts
Flat topped nodules with only a slight elevation
Can grow anywhere
6. Filiform warts
Long threads or thin finger like projections that stick out
Usually grow on the face, around the mouth, eyes, and nose
Grows very quickly
7. Butcher's warts
The main characteristic of these warts is their cauliflower-like appearance
They commonly affect the knees and hand
These are primarily seen in individuals who handle raw meats
8. Focal epithelial hyperplasia
Soft smooth, flat-topped slightly in the oral mucosa
Often present in multiple lesions of less than 1cm in diameter
9. Cystic warts
Presence of generally smooth bumps
Appear on the weight bearing surfaces of the body
Causes Of Warts
Warts are caused by Human Papillomavirus (HPV). Although HPV has over 100 subtypes, only a few cause skin warts.
Warts can be transmitted easily through direct or indirect contact. The transmission of the virus is fast through disrupted and soft skin. The mode of transmission includes:
Touching the skin of the infected person
Doing unprotected sexual intercourse
Touching contaminated objects such as towels and razor
Using communal bathrooms and swimming pools
Sharing sex toys
What happens after the exposure?
Once HPV has infected the skin, it spreads to other parts through scratching, shaving, or injuries. The virus can enter the skin and multiply in its uppermost layer. It makes the outer layer of the skin thick and complex, and it protrudes as a wart.
A few subtypes of HPV have the potential to induce cancer. These strains include type 6, 11, 16, 18, 31, and 35. Individuals who are immunocompromised are more prone to transformation of warts into cancer.
Risk Factors For Warts
People in close contact with someone with warts are likely to develop warts. The other possible risk factors include:
1. Weakened immune system
Individuals with low immunity cannot fight the virus effectively. This makes them more susceptible to viral infection, including warts. It also includes people who have undergone organ transplantation or have medical conditions such as cancer or HIV infection.
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2. Age
Children and teenagers are at high risk of catching warts. The incidence of warts peaks between the ages of 12 and 16.
3. Race
White people are more likely to develop warts as compared to Blacks or Asians. Focal epithelial hyperplasia is more commonly observed in Inuit and American Indians.
4. Medical conditions
Several skin diseases, such as eczema and dermatitis, increase the risk of warts.
5. Occupation
Frequent meat handlers are more exposed to HPV infection and, thus, more likely to develop warts. People who bite their nails or pick at hangnails also have an increased chance of developing warts.
6. Unprotected sexual intercourse
Having unprotected oral, anal, or vaginal sex with an infected partner increases the risk of genital warts.
7. Smoking
Some studies suggest that smoking is associated with an increased risk of contracting genital warts.
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Diagnosis Of Warts
The diagnosis of warts include:
1. Clinical examination
Each type of wart has a characteristic feature and location. Almost all cases of warts are diagnosed through physical examination by a trained clinician.
2. Dermoscopy
It refers to the examination of skin using a high quality magnifying lens and a powerful lighting system (a dermatoscope). It reveals abnormalities of the skin.
3. Immunohistochemical (IHC) detection
It uses antibodies to detect the location of proteins and other antigens in a sample of skin tissue. It confirms the presence of virus in a lesion.
4. Southern blot hybridization
It is used to identify the specific HPV type present in tissue. It has higher sensitivity than IHC.
5. Polymerase chain reaction
It is another confirmatory method to detect the virus present in a lesion. In this, the genetic material of the virus is amplified.
6. Biopsy
In case of a suspicion of cancer, a sample of skin tissue is taken for biopsy.
Prevention Of Warts
It is not possible to completely prevent warts as the virus is highly contagious. However, the following measures minimize the chances of infection to some extent.
1. Vaccinate yourself
HPV vaccines protect against anal and genital warts to a greater extent. All people ages 9 to 45 can get the HPV vaccine to protect against genital warts and different types of cancer-causing HPV. Optimal protection starts early. That's why it's advisable to get the HPV vaccine sooner rather than later.
What is the schedule?
A 2-dose schedule is recommended for people who get the first dose before their 15th birthday.
In a 2-dose series, the second dose should be given 6–12 months after the first dose (0, 6–12-month schedule)
A 3-dose schedule is recommended for people who get the first dose on or after their 15th birthday and those with certain immunocompromising conditions.
2. Ensure foot care
Plantar warts can be prevented by maintaining a good foot hygiene routine. The following measures can help you achieve it:
Wash your feet daily with soap and water.
Dry them thoroughly, especially between the toes.
Wear clean, dry, moisture-wicking socks. Change them regularly.
Prefer open footwear like floaters that allow the skin to breathe.
Regularly rotate shoes to air them out.
Use shower sandals on wet locker room floors and public showers.
Avoid used instruments such as pumice stones or nail files
3. Take proper care of the wounds
Wounds are the leading cause of infection. Proper care of wounds and injuries can help prevent viral infections. The following measures should be taken to keep the wounds away from the virus:
Wash hands with soap and water more frequently
Use an alcohol-based hand rub if washing is not possible
Keep the draining or open wounds clean
Keep the wounds and injuries covered with the dressings until they heal
Avoid hot tubs, swimming pools, and other water bodies such as lakes, rivers, and oceans till the wound heals completely.
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4. Maintain hand hygiene
Washing your hands more often is always advisable, especially after coughing and sneezing. Hand hygiene should also be maintained before preparing foods and during eating.
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5. Keep the skin moisturized
HPV quickly infects dry and cracked skin, increasing the chances of warts. It is always advisable to apply moisturizer within 5 minutes of bathing or whenever the skin feels dry.
Shop from our extensive range of moisturizers.
6. Maintain skin barrier
The skin barrier should be maintained through timely management of skin conditions such as atopic dermatitis and eczema. Any allergen or irritant to the skin should be avoided.
7. Avoid nail biting and cuticle chewing
Excessive nail and cuticle biting causes sores and tears in the skin, which makes the entry of HPV easy. Avoiding this habit minimizes the risk of warts.
8. Get treated for excessive sweating
Excessive sweating increases the chances of developing warts as the virus grows more in damp skin. Managing and treating this condition can help prevent warts.
9. Go for regular skin examination
Individuals with diabetes or obesity should undergo regular skin screening. Early management can help prevent infection. Diabetics should also check their feet daily for signs of injury or infection.
Specialist To Visit
Most of the cases of warts can be treated with over-the-counter medications and home remedies. The health care provider should be consulted in case of:
Suspicion that the growth is not a wart
Presence of wart on your face or genitals
Presence of many warts
Itching and burning on the affected site
Painful warts
Low immunity
Diabetes
The doctors that might help include:
General Physician
Dermatologist
Cosmetologist
A general physician will examine your symptoms and initiate treatment.
Dermatologists have expertise in diagnosing and treating skin disorders.
Cosmetologists are trained and licensed to perform cosmetic treatments of the skin, nails, and hair. They help manage the skin's appearance and also perform in-office treatments.
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Treatment Of Warts
No treatment for wart can permanently cure the condition. Recurrences are very common. Various treatment options include:
1. Topical agents
These agents are available in creams, gels, and lotions and are applied over the warts. The common medications include:
Salicylic acid is the first-line agent for most of the common warts.
Dibutyl squaric acid, also known as squaric acid dibutyl ester (SADBE), and diphenylcyclopropenone (DCP) are contact sensitizers. They activate the immune system, which provides symptomatic relief.
Imiquimod targets the body's immune system and helps fight viruses. It is available in gel form and effectively manages genital and common warts.
5-Fluorouracil is an anticancer medication that has been reported to be effective in treating warts.
Cidofovir, an antiviral agent, has proven beneficial for unresponsive warts.
2. Intralesional injections
It involves injecting the medication into the lesions. Examples include:
Skin test antigen involves injecting the viral and fungal extract. The extract acts as an antigen that stimulates the immune system, helping to produce antibodies that eradicate the virus.
Bleomycin, an anticancer agent, is used to inhibit the growth of the wart virus.
Interferon-alfa is an immunomodulator with additional antiviral, antibacterial, and anticancer properties. It is used in warts that do not respond to standard treatments.
3. In-clinic treatments
It involves slightly invasive procedures performed by trained healthcare professionals in clinics or hospitals.
Cantharidin: It is a fatty substance that the beetle secretes. It removes the outer layer of skin that contains warts.
Cryosurgery: It involves the application of liquid nitrogen using a cotton bud applicator around the wart. The procedure is repeated every 1-4 weeks for approximately three months.
Curettage: It involves scraping off the wart using a knife.
Excision: In this, the wart is excised cut.
Photodynamic therapy: This therapy uses light and photosensitizing agents to treat warts. The procedure involves injecting the agent and staying in light for a particular duration, which kills the cells containing warts.
Laser treatment: Laser light is directed towards the affected part. This treatment option is usually used for large and severe warts.
Home-care Of Warts
Some home remedies for warts can be tried. However, it is essential to consult your healthcare provider before initiating any of these:
1. Garlic (Lehsun): Garlic is used to treat several skin conditions. Its antimicrobial properties also help treat warts.
How to use it?
A garlic extract can be prepared by crushing a clove and mixing it with water. It must be applied daily for three to four weeks.
2. Orange peel: Orange peels are also known to remove warts.
How to use it?
Rubbing an orange peel on the wart daily helps it fall off.
3. Pineapple: The active ingredient bromelain helps remove dead and damaged cells, including warts.
How to use it?
Pineapple juice can be applied to the warts.
4. Honey (Sehad): It is a potent antibacterial and antiviral agent.
How to use it?
Apply a small quantity of honey over the wart and let it sit for 15-20 minutes.
5. Green Papaya: Papaya is a source of an enzyme that peels away dead skin and helps get rid of warts.
How to use it?
Cut a green papaya in half and collect the white sap that runs out from the skin. Mix that with a teaspoonful of the papaya pulp mash and water to make a smooth paste. Apply this paste to the warts twice daily and leave it on for 15-20 minutes. This mixture grazes the dead tissue and gradually makes the wart disappear.
6. Aloe vera: It has a whole host of skin benefits, wart removal being one of them. It acts as a natural antioxidant and anti-infective.
How to use it?
Apply the Aloe vera gel to the warts and let it stay for 30-45 minutes before washing it off.
7. Apple cider vinegar: It can help peel off the affected skin, removing the warts.
How to use it?
A cotton ball dipped in diluted apple cider vinegar can be used to apply it to the wart.
Learn about the various benefits of apple cider vinegar.
Complications Of Warts
Approximately two-thirds of warts resolve on their own over several years. But some warts can lead to scarring as a result of topical treatment.
Certain strains of HPV have been associated with the development of cervical cancer, vulvar cancer, anal cancer, and, rarely, cancer of the penis. It is usually seen in genital warts.
Occasionally, the occurrence of warts on the vaginal wall may pose a challenge to the vaginal elasticity required for childbirth. In these instances, a cesarean delivery may be advised.
Alternative Therapies For Warts
Some alternative therapies might be effective in tacking warts. Do consult your doctor before initiating any of these:
1. Podophyllin resin
It is the extract that is derived from the roots of May apple plant. The topical application of this extract is known to treat genital and plantar warts. It works by inhibiting the growth and multiplication of viruses.
Podofilox is another less irritating form of podophyllin available in the market.
2. Duct tape therapy
In this, the duct tape is applied to the wart. This creates an environment that helps in the detachment of warts.
3. Hypnosis
In this, the brain is controlled through various activities. It is used to treat unresponsive warts. The hypnosis can be induced through various ways such as the application of an imaginary freezing agent to the wart. The success rate is reported from 27-55% in children.
4. Hyperthermia
In this, the affected part is immersed in the surface of hot water for 30-45 minutes. This should be done 2-3 times per week.
Living With Warts
Living with warts can be bothersome due to their chronic nature. It is essential to understand that most warts resolve on their own. The following measures help in faster recovery and reduce transmission.
1. Keep the warts covered
Keeping warts covered helps prevent the transmission of warts to other body parts and other people.
2. Wash your hands after touching the wart
When it comes to warts, maintaining good personal hygiene is not just a suggestion, it's a necessity. Every time you handle a wart, whether it's for dressing or any other reason, it's crucial to wash your hands thoroughly.
3. Avoid shaving over a wart
Shaving over a wart can create microtears, which, in turn, increases the spread of warts. To avoid this, it's advisable to refrain from shaving over a wart. By being cautious and aware of such potential harm, you can better manage and prevent the spread of warts.
Preventing the transmission
The virus of warts spreads very fast from one person to another. The significant complications develop due to the intra-transfer of the virus from one body part to another. These transmissions can be minimized through a more conscious approach. The following measures may help prevent transmission:
Avoid touching the wart
Use a waterproof plaster to cover the warts while swimming
Avoid sharing towels, shoes, gloves, and socks
Keep washing your hands frequently, especially after touching the wart
Avoid scratching or picking at warts
Wear flip-flops or pool shoes in public showers, locker rooms, and pool areas
Did you know?
Nail biters commonly suffer from a different type of warts known as periungual warts. These warts develop around the fingers and can cause discomfort or pain and may disrupt nail growth.