Trichomoniasis

Trichomoniasis is a common sexually transmitted infection (STI) caused by a parasite, often with mild or no symptoms.

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Dr. Cosmin Alexandru

General Medicine Doctor | CUIM: 2791492305

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Dr. Cosmin Alexandru has 20+ years in emergency and family medicine, now serving at County Clinic Hospital Sibiu.

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Treatment Information

What Is Trichomoniasis?

Trichomoniasis is an STI caused by the parasite Trichomonas vaginalis. It spreads through unprotected vaginal sex and can infect both men and women. Many people with trichomoniasis experience no symptoms, making it easy to pass the infection unknowingly.

If left untreated, trichomoniasis increases the risk of other STIs, including HIV, and can lead to complications such as pregnancy issues and reproductive health problems. Fortunately, trichomoniasis is curable with medication.

Common Causes & Risk Factors of Trichomoniasis

Trichomoniasis spreads through sexual contact, especially:

  • Unprotected vaginal sex (it rarely infects the mouth or anus).
  • Multiple sexual partners or a new partner without recent STI testing.
  • Previous trichomoniasis infection, as reinfection is common.
  • Sharing uncleaned sex toys.
  • Weakened immune system, which increases susceptibility.

Trichomoniasis can survive on moist surfaces for a short time, but non-sexual transmission is extremely rare.

Common Causes & Risk Factors of Trichomoniasis

Trichomoniasis spreads through sexual contact, especially:

  • Unprotected vaginal sex (it rarely infects the mouth or anus).
  • Multiple sexual partners or a new partner without recent STI testing.
  • Previous trichomoniasis infection, as reinfection is common.
  • Sharing uncleaned sex toys.
  • Weakened immune system, which increases susceptibility.

Trichomoniasis can survive on moist surfaces for a short time, but non-sexual transmission is extremely rare.

How Is Trichomoniasis Diagnosed?

Trichomoniasis is diagnosed through:

  • Swab tests – Samples from the vagina or urethra are examined for the parasite.
  • Urine tests – Detects the infection in men and sometimes in women.
  • Microscopic examination – Identifies the parasite in discharge samples.
  • Nucleic Acid Amplification Tests (NAATs) – The most accurate test to detect the infection.

Best Treatment Options for Trichomoniasis

Trichomoniasis is curable with prescription antibiotics. The most common treatments include:

Medications:
  • Metronidazole (Flagyl): A single-dose or 7-day course to eliminate the infection.
  • Tinidazole: Another effective antibiotic with fewer gastrointestinal side effects.
  • Arilin Rapid: A targeted treatment option for trichomoniasis.
During Treatment:
  • Avoid alcohol while taking Metronidazole, as it can cause severe nausea and vomiting.
  • Refrain from sexual activity until both partners complete treatment.
  • Ensure all sexual partners receive treatment to prevent reinfection.
  • Complete the full antibiotic course, even if symptoms disappear.

Additional treatment information

To reduce the risk of trichomoniasis:

  • Use condoms and dental dams during vaginal sex.
  • Get regular STI screenings, especially if you have new or multiple partners.
  • Ensure all sexual partners are treated to prevent reinfection.
  • Avoid sharing sex toys or clean them properly between uses.
  • Maintain open communication with partners about STI testing.
  • Practice good genital hygiene, as bacterial imbalances can increase susceptibility to infections.

Frequently Asked Questions

Get answers to common questions about Trichomoniasis

Trichomoniasis is typically cured within 7 days with antibiotics, though symptoms may improve within a few days.
No, trichomoniasis does not resolve without treatment and can lead to complications if left untreated.
Testing is recommended if you experience unusual discharge, itching, or pain or after unprotected sex with a new partner.
Yes, reinfection is common, especially if sexual partners are not treated together. Regular STI screening is advised.
No, avoid sexual contact until treatment is completed to prevent reinfection and transmission.
Yes, home testing kits are available, but they may not be as accurate as laboratory tests. Confirming results with a healthcare provider is recommended.

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