Vulvovaginal & Vulvar Disorders in Children

Bloodstained vaginal discharge · Vulvar irritation · Other vulvar disorders · Labial adhesions · Prepubertal bleeding · Foreign body · Lichen sclerosus · Vulvovaginitis
🩺 Key concepts: Prepubertal bleeding (foreign body, trauma, urethral prolapse, sarcoma botryoides). Vulvar irritation (pinworms, irritant contact, candidiasis, lichen sclerosus). Labial adhesions (estrogen cream, manual separation).

📖 Vulvovaginal symptoms & disorders in children

🩸 Bloodstained vaginal discharge (prepubertal)
Causes: foreign body (foul odor), urethral prolapse (doughnut mass), sexual abuse (trauma), sarcoma botryoides (grape-like mass), lichen sclerosus, precocious puberty. Always investigate.
🦠 Vulvar irritation & vulvovaginitis
Infectious: pinworms (nocturnal pruritus), Group A Strep (pharyngitis, perianal), Candida (rare prepubertal, after antibiotics). Irritant: bubble baths, soaps, tight clothing, poor hygiene. Lichen sclerosus (figure-of-eight, white crinkled skin).
🔬 Other vulvar disorders
Lichen sclerosus (chronic, intense itching, hypopigmentation, scarring). Vulvar vestibulitis (pain, tenderness). Psoriasis. Urethral prolapse (doughnut-shaped, painless bleeding). Hemangiomas. Trauma (straddle injury).
🧩 Labial adhesions
Fusion of labia minora (estrogen deficiency). Usually asymptomatic. If covering urethral meatus → UTI, urinary obstruction, post-void dribbling. Treatment: observation (asymptomatic), topical estrogen cream (2-4 weeks), manual separation under topical anesthetic.
⚠️ Red flags for serious pathology: Recurrent bleeding without obvious cause, mass protruding from vagina (sarcoma botryoides), persistent foul odor despite hygiene measures, pain interfering with walking/urination, signs of sexual abuse.

🩺 Clinical approach: bloodstained discharge, vulvar irritation, labial adhesions

1
Prepubertal vaginal bleeding – History: trauma, foreign body (foul discharge), sexual abuse. Exam: inspect for foreign body, urethral prolapse, mass, signs of abuse. If unexplained → exam under anesthesia (EUA) ± vaginoscopy.
2
Vulvar irritation & vulvovaginitis – Ask about perianal itching (pinworms), recent antibiotics (Candida), streptococcal pharyngitis (GAS). Exam: erythema, discharge, lesions. Swab for culture (bacterial, viral). Perianal tape test for pinworms.
3
Lichen sclerosus – Typical "figure-of-eight" perianal and vulvar hypopigmentation, crinkled paper-like skin, intense itching, scarring (labial fusion, introital stenosis). Biopsy for confirmation if atypical.
4
Labial adhesions – Asymptomatic: reassurance. If covering urethral meatus, recurrent UTI, or voiding symptoms: topical conjugated estrogen cream (2-4 weeks), then manual separation, followed by emollient to prevent recurrence.
📌 Clinical pearl: A prepubertal child with foul-smelling, bloodstained vaginal discharge until proven otherwise is a vaginal foreign body (toilet paper, small toy). EUA + vaginoscopy.

📋 Stepwise management of vulvovaginal disorders

1
Foreign body (bloodstained discharge, foul odor) – EUA + vaginoscopy + removal. Antibiotics only if secondary infection.
2
Pinworm (Enterobius vermicularis) – Albendazole 400mg single dose, repeat in 2 weeks. Treat all household contacts. Hygiene measures (hand washing, daily morning shower, change underwear).
3
Group A streptococcal vulvovaginitis – Oral penicillin V or amoxicillin for 10 days. Erythromycin if allergic.
4
Lichen sclerosus – High-potency topical corticosteroid (clobetasol propionate 0.05% ointment) for 2-4 weeks, then maintenance. Long-term follow-up for scarring and malignancy risk (rare).
5
Labial adhesions – Asymptomatic: observation. Symptomatic (UTI, obstruction): conjugated estrogen cream (Premarin 0.3 mg/g) once daily for 2-4 weeks; gently separate after 4 weeks. Betamethasone cream alternative. Emollient (Vaseline) to prevent re-fusion.
6
Urethral prolapse – Sitz baths, topical estrogen, antibiotics. If severe or non-resolving → surgical excision.
🚨 Suspected sarcoma botryoides (embryonal rhabdomyosarcoma): Grape-like polyps protruding from vagina; urgent biopsy, pediatric oncology referral, chemotherapy + surgery.

🧠 Reflex prompts: vulvovaginal & labial disorders

🩸 5-year-old with bloodstained, foul-smelling vaginal discharge. Most likely cause?
Vaginal foreign body (toilet paper, bead, small toy). Exam under anesthesia + vaginoscopy.
🪱 6-year-old with perianal itching, worse at night. Most likely?
Pinworms (Enterobius vermicularis). Scotch tape test, albendazole 400mg stat.
🩺 4-year-old with vulvar erythema, excoriations, and vaginal discharge. Recent pharyngitis in sibling. Likely pathogen?
Group A Streptococcus. Oral penicillin for 10 days.
⚪ 8-year-old with chronic vulvar itching, white crinkled skin in figure-of-eight pattern. Diagnosis?
Lichen sclerosus. Topical clobetasol propionate 0.05% ointment.
🔬 2-year-old with labial fusion covering urethral meatus, recurrent UTIs. Treatment?
Topical conjugated estrogen cream for 2-4 weeks, then manual separation.
🩸 7-year-old with painless vaginal bleeding, doughnut-shaped mass at urethral meatus. Diagnosis?
Urethral prolapse. Sitz baths, topical estrogen, antibiotics. Surgery if refractory.
🍇 3-year-old with grape-like polyps protruding from introitus and bloodstained discharge. Diagnosis?
Sarcoma botryoides (embryonal rhabdomyosarcoma). Urgent biopsy, pediatric oncology referral.
🧪 First-line treatment for lichen sclerosus in a child?
Topical high-potency corticosteroid (clobetasol propionate 0.05%).
🩺 Most common cause of vulvovaginitis in prepubertal girls?
Nonspecific vulvovaginitis (irritants, poor hygiene).
🩸 What is the most important differential for prepubertal vaginal bleeding?
Foreign body, urethral prolapse, trauma (accidental or sexual abuse), lichen sclerosus, sarcoma botryoides, precocious puberty.