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Trichomonas Vaginalis

Information about causes and symptoms of trichomonas vaginalis

Trichomonas vaginalis is an infection caused by a parasite which is spread through unprotected sex. It is more common in women, affecting the urethra and vagina, though it does affect the prostate gland and urethra in men.

Every year about 174 million people across the globe are infected with trichomonas vaginalis, which can be cured with a simple course of prescribed antibiotics. This makes it the most curable sexually transmitted infection in the world.

If you don’t treat trichomonas vaginalis, it can cause prostatitis in men and premature labour in women.

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What are the symptoms of trichomonas vaginalis?

Over half of people who contract trichomonas vaginalis don’t display any symptoms. This is cause for concern because you can pass this infection on to a partner even if you aren’t showing symptoms, and it can remain undetected in your body for a while.

If symptoms are experienced, more often it will be women that suffer with the discomfort. The most common symptoms include itching, soreness and inflammation of the vagina; pain during sexual intercourse or when urinating; pain in the groin area; and a greenish-yellow discharge which may appear frothy and have a distinct odour.

If men experience side effects, they will usually notice discharge from the urethra as well as more frequent and painful urinations.

What is the cause of trichomonas vaginalis?

It’s the trichomonas protozoan that causes this infection. It lives inside the infected urethra or vagina and passes easily between people. The parasite is as small as a white blood cell and can move around the tissue in the urethra and vagina. By directly damaging the tissue, the trichomonas parasite can cause ulceration.

The most common way of contracting trichomonas vaginalis is through unprotected sex. In extremely rare and unusual cases, it has been known that this infection can be spread by sharing a Jacuzzi, a hot bath or moist towels.

What are the risks of trichomonas vaginalis?

This infection doesn’t travel as far up the urethra or spread to the body like other STIs, which makes it one of the less dangerous infections you can contract.

However, there are risks that come with catching trichomonas vaginalis. Regardless of gender, this infection increases the chance of contracting more serious sexually transmitted infections such as HIV.

In men, trichomonas can cause prostatitis. If left untreated in women, it can raise the risk of premature labour and increase the chance of babies being born with much lower birth weights.

Many people who are infected with trichomonas are often found to have contracted gonorrhoea too.

How can trichomonas vaginalis be treated?

This infection is easy to cure with a simple course of antibiotics. Metronidazole is the most effective antibiotic used to treat a trichomonas infection. It can be taken as either a single or seven-day dose.

It’s vitally important that you complete a course of antibiotics. If you feel better and don’t finish your medication, the infection could still be present and will attack your body again.

Hilary Jones

"Trichomonas vaginalis is a parasitic STI that is more common in women than men. It can eventually lead to complications, but is easy to treat."

Dr Hilary Jones

HealthExpress Medical Advisor

Finding treatment

Metronidazole is the most effective antibiotic used to treat a trichomonas infection. This antibiotic can easily be taken as either a 1 day dose or as a 7 day course to treat the infection. You should always take the full course of antibiotics, even if your symptoms disappear before you finish the course.

Obtaining treatment from us could not be easier and will take minutes.

Step 1 - Simply complete our online consultation which will be reviewed by one of our registered UK doctors.

Step 2 - They will be able to recommend a range of beneficial treatments. You will receive a diagnosis in a secure email.

Step 3 - If deemed suitable, you will have the access to login, directly to your personalised member's area, from where you will be able to place your order and receive it the next working day.

Taking an online consultation

If you buy a trichomonas vaginalis treatment from, we will send it to you via free next-day delivery. This means that you could start treating an infection as early as tomorrow. All you need to do to get started is complete a consultation with one of our doctors. If a doctor decides it’s safe for you to use this trichomonas vaginalis treatment, they will write you a prescription which will be dispensed by our registered pharmacy, before it’s sent to you for speedy delivery.

Start your order by completing the free no obligation online consultation

Treatments start from as little as €55.00 including free next-day delivery

Start Your Free Online Consultation Now
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