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Periungual Warts

Human papillomavirus-induced verrucae located around or under the nail folds and nail plate, often refractory to treatment, addressed with cryotherapy, salicylic acid, immunotherapy, intralesional therapy, and laser ablation.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Dermatoloji department. Book Appointment →

What is Periungual Warts?

Periungual warts are benign epidermal proliferations caused by infection with human papillomavirus (HPV) types 1, 2, 4, 27, and 57, located around the nail folds (paronychial) or under the nail plate (subungual). They appear as rough, hyperkeratotic, fissured papules and plaques that can distort the nail plate, cause longitudinal grooves, onycholysis, and secondary bacterial or fungal infection.

Risk factors include nail biting, cuticle picking, occupational wet work, immunosuppression, and contact with public surfaces. Periungual warts are particularly difficult to treat because of thick palmoplantar keratin, the protected niche under the nail plate, and risk of permanent nail dystrophy from aggressive treatment. Differential diagnosis includes squamous cell carcinoma in immunocompromised or refractory long-standing lesions, periungual fibroma (tuberous sclerosis), and onychomycosis.

Diagnosis is usually clinical with dermoscopy showing thrombosed capillaries (red-brown dots) within the lesion. Refractory or atypical lesions warrant biopsy to exclude malignancy, especially with HPV-16 association. Treatment is multimodal and individualized: keratolytics, cryotherapy, intralesional injections, immunotherapy, photodynamic therapy, ablative or pulsed dye laser, and surgery for resistant cases, with patient education on prevention and adherence.

Symptoms

Rough, hyperkeratotic papules around or under the nail
Fissured surface with black thrombosed capillaries (dermoscopic clue)
Distortion of the nail plate, longitudinal grooves, onycholysis
Pain, especially with subungual involvement
Secondary bacterial paronychia or fungal infection
Lesions on multiple fingers indicating autoinoculation
Recurrent warts after treatment due to subclinical HPV reservoir

Risk Factors

Nail biting, cuticle picking, occupational hand trauma
Wet work occupations and contact with public surfaces
Atopic dermatitis with disrupted skin barrier
Immunosuppression: HIV, organ transplant, immunomodulators
Children and adolescents (peak prevalence)
Family or household contacts with warts
Hyperhidrosis

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Persistent or spreading periungual warts despite home treatment
  • Painful or rapidly growing lesions
  • Nail plate distortion or onycholysis
  • Suspected secondary infection (paronychia, cellulitis)
  • Refractory lesions in immunocompromised patients
  • Lesions present for years with concern for malignant transformation
  • Cosmetic or functional concerns affecting daily activities

Treatment Methods

01
Topical keratolytics: salicylic acid 17-40% with paring and occlusion for 8-12 weeks
02
Cryotherapy with liquid nitrogen every 2-3 weeks; caution to avoid matrix damage and pigment loss
03
Intralesional bleomycin (1 IU/mL) or candida antigen as immunotherapy with high response rates
04
Topical 5-fluorouracil cream or imiquimod with occlusion for selected cases
05
Pulsed dye laser targeting feeding capillaries; CO2 or Er:YAG laser ablation for refractory lesions
06
Photodynamic therapy with topical aminolevulinic acid
07
Surgical curettage or electrodesiccation reserved for isolated resistant cases; patient education on avoiding nail biting, cuticle trauma, and household spread; long-term follow-up to address recurrences

Which Department to Visit?

You can visit our Dermatoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.