Detailed microscopic image showing red structures and blue virus particles.

Vaginal Pinworm Infestation

Vaginal pinworm infestation occurs when pinworms (small, white intestinal worms) migrate from the anus to the vaginal area. It is a secondary effect of intestinal pinworm infection (Enterobius vermicularis), most common in children but possible in adults. Though uncomfortable, it is treatable and preventable with proper hygiene.

2. Causes & Transmission

  • Primary Source: Intestinal infection from swallowing pinworm eggs (faecal-oral route).
  • Migration to Vagina: Eggs or worms spread from the anus due to scratching or poor hygiene.
  • Risk Factors:
    • Being female (due to proximity of anus and vagina).
    • Age (common in children 5–10 years).
    • Crowded living spaces (schools, households).
    • Poor handwashing habits.

3. Symptoms

  • Vaginal Area:
    • Intense itching (worse at night).
    • Redness, irritation, or mild discharge.
  • General:
    • Anal itching (main infection site).
    • Restlessness or sleep disturbances.
    • Visible worms (tiny, white, thread-like) in stool or around the vagina/anus.

4. Diagnosis

  • Tape Test: Press clear tape to the anal/vaginal area in the morning to collect eggs for lab analysis.
  • Clinical Exam: Visual inspection for worms or irritation.
  • Stool Sample: Rarely needed, as eggs are usually near the anus.

5. Treatment

Medications

  • Anthelmintic Drugs:
    • Mebendazole or Albendazole (oral doses for all household members).
    • Repeat treatment after 2 weeks to kill newly hatched eggs.
  • Symptom Relief:
    • Topical creams (e.g., hydrocortisone) for itching (ask your doctor first).
    • Warm baths with baking soda to soothe irritation.

Hygiene Measures

  • Wash hands thoroughly after using the toilet/before eating.
  • Trim nails short and avoid scratching.
  • Daily morning showers to remove eggs.

7. Frequently Asked Questions

Q: Is this a sexually transmitted infection (STI)?
A: No—it spreads through eggs, not sexual contact.

Q: Can it recur?
A: Yes, if eggs are accidentally re-ingested. Strict hygiene prevents this.

Q: Does it affect fertility?
A: No—it causes temporary discomfort but no long-term harm.

Q: Can pregnant women take pinworm medication?
A: Consult a doctor—some treatments are safe during pregnancy.

eGynaecologist Advice:

  • Seek gynaecological consultation if you tiny thread like worms are visible in or around vagina
  • Complete the full course of medication—even if symptoms resolve. You should repeat the treatment in 2 weeks and the entire household to prevent reinfection.
  • You must prioritise hand hygiene and use clean bedding to prevent re-infection