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Warty Growths

What is Warty growths?

Warty growths are small, rough‑surfaced lesions that project from the skin or mucous membranes. They usually feel firmer than a regular mole, may have a cauliflower‑like appearance, and can range in size from a pinpoint papule to several centimeters in diameter. While the word “wart” often brings to mind the common childhood skin wart caused by the human papillomavirus (HPV), many different conditions produce wart‑like lesions, including benign growths, viral infections, and even some early cancers. Understanding the underlying cause is essential for appropriate management.

Common Causes

The following conditions are the most frequent culprits behind warty‑appearing growths:

• Common (Viral) Warts – Caused by cutaneous HPV types (e.g., 1, 2, 4).
• Flat (Verruca plana) Warts – Often appear on the face, neck, or shins; caused by HPV types 3 and 10.
• Plantar (Foot) Warts – Grow on weight‑bearing areas of the foot; can be painful.
• Genital Warts (Condyloma acuminata) – Result from sexually transmitted HPV types 6 and 11.
• Verrucous Carcinoma (a subtype of squamous cell carcinoma) – A slow‑growing, wart‑like cancer.
• Keratoacanthoma – A rapidly expanding, dome‑shaped tumor that may mimic a wart.
• Seborrheic Keratosis – Benign, “stuck‑on” lesions frequently mistaken for warts.
• Viral Molluscum contagiosum – Causes flesh‑colored, dome‑shaped papules with a central dimple.
• Hypertrophic Lichen Planus – An inflammatory condition that can generate thick, warty plaques.
• Genodermatoses (e.g., Darier disease, Epidermodysplasia verruciformis) – Rare inherited disorders that produce widespread wart‑like lesions.

Associated Symptoms

Warty growths seldom occur in isolation. Depending on the underlying condition, patients may notice:

• Itching or burning sensation.
• Pain, especially with plantar warts that press on weight‑bearing surfaces.
• Bleeding or oozing if the lesion is traumatized.
• Hyperpigmentation or hypo‑pigmentation around the wart after treatment.
• Swelling of nearby lymph nodes (more common with viral warts or early cancer).
• Systemic signs such as fever or malaise when warts are associated with a broader infection (e.g., molluscum in immunocompromised patients).
• In genital warts: discharge, discomfort during urination or intercourse.

When to See a Doctor

Most warts are harmless and may resolve spontaneously, but certain features warrant prompt medical evaluation:

• Rapid growth or change in size, shape, or color.
• Bleeding, ulceration, or a foul odor.
• Pain that interferes with daily activities (e.g., walking, typing).
• Warts that appear on the face, genitals, or mucous membranes.
• Multiple new warts in an adult, especially if you are immunosuppressed.
• Warts that do not improve after 2–3 months of over‑the‑counter treatment.
• Any suspicion of skin cancer (e.g., a wart that looks irregular, has rolled borders, or doesn’t respond to typical wart therapy).

Diagnosis

Diagnosis starts with a thorough history and physical examination. The clinician will usually:

1. Inspect the lesion – Evaluate size, color, surface texture, and location.
2. Ask questions – Duration, prior treatments, sexual history (for genital lesions), immunization status, and exposure to irritants.
3. Perform a dermatoscopic exam – A handheld magnifier that helps differentiate warts from other lesions.
4. Biopsy (if needed) – A shave, punch, or excisional biopsy may be ordered when there is doubt about malignancy, when the lesion is atypical, or when it fails to respond to standard therapy.
5. HPV typing – In select cases (e.g., recurrent genital warts), clinicians may send a sample for HPV DNA testing.
6. Blood tests – For immunocompromised individuals, a CBC or HIV screen may be recommended.

Treatment Options

Treatment is individualized based on cause, lesion location, patient age, and cosmetic concerns.

Common Warts (HPV)

• Topical salicylic acid – Over‑the‑counter 17–40% formulations applied daily after soaking the wart.
• Cryotherapy – Liquid nitrogen applied by a clinician; works by freezing the wart tissue.
• Cantharidin – A blistering agent applied in the office, causing the wart to lift off.
• Immunotherapy – Topical imiquimod or intralesional Candida antigen stimulates the body’s immune response.
• Laser therapy – Pulsed dye or CO₂ lasers can vaporize resistant warts.

Genital Warts

• Prescription podophyllotoxin cream or imiquimod 5% cream applied at home.
• Cryotherapy or surgical excision for larger lesions.
• Patient‑administered home treatments should be done under provider guidance because of the sensitive location.

Seborrheic Keratosis & Keratoacanthoma

• Shave excision or curettage – often curative and provides tissue for pathology.
• Electrodessication – a brief electric current to destroy the lesion.

Verrucous Carcinoma & Other Cancers

• Surgical excision with clear margins is the standard of care.
• Radiation or topical chemotherapy (e.g., 5‑fluorouracil) may be considered for inoperable cases.

Home Care & Symptom Relief

• Keep the area clean and dry; excess moisture promotes viral spread.
• Cover large plantar warts with a waterproof bandage to reduce pain while walking.
• Avoid picking or biting warts – this can spread infection and cause scarring.
• Use OTC pain relievers (acetaminophen or ibuprofen) for discomfort.

Prevention Tips

Many warty growths are caused by viral infections that can be mitigated with simple hygiene measures:

• Vaccination – The 9‑valent HPV vaccine protects against the strains that cause most genital warts and several cancers. Recommended for ages 9–45.
• Hand hygiene – Wash hands with soap and water after touching a wart or using public showers.
• Avoid direct skin‑to‑skin contact with warty lesions, especially in communal settings (gym floors, swimming pools).
• Keep feet dry – Wear breathable footwear and change socks daily to prevent plantar warts.
• Use protective barriers – Wear flip‑flops in public showers and pool areas.
• Do not share personal items such as towels, razors, or nail clippers.
• Manage immune health – Adequate sleep, balanced diet, and control of chronic conditions (diabetes, HIV) lower the risk of persistent warts.
• Regular skin checks – Early detection of atypical lesions improves outcomes, especially for older adults.

Emergency Warning Signs

Key Take‑aways

Warty growths range from harmless viral warts to early skin cancers. While many resolve on their own, persistent or atypical lesions merit professional evaluation. Early diagnosis, appropriate treatment, and preventive measures such as HPV vaccination and good skin hygiene can reduce complications and improve quality of life.

References:

• Mayo Clinic. “Wart Treatment.” Updated 2023. https://www.mayoclinic.org
• CDC. “Human Papillomavirus (HPV) Vaccine.” 2024. https://www.cdc.gov
• National Cancer Institute. “Verrucous Carcinoma.” 2022. https://www.cancer.gov
• Cleveland Clinic. “Seborrheic Keratosis: Symptoms & Treatment.” 2023. https://my.clevelandclinic.org
• WHO. “Human Papillomavirus (HPV) and Cervical Cancer.” 2023. https://www.who.int

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