Let’s Talk Sex | Trichomoniasis: The Most Common STI You’ve Probably Never Heard Of

Last Updated:June 01, 2025, 09:00 IST

Trichomoniasis, often whispered as “trich,” is a sexually transmitted infection that surprisingly ranks as one of the most prevalent yet under-discussed STIs out there

Sex may permeate our popular culture, but conversations about it are still associated with stigma and shame in Indian households. As a result, most individuals dealing with sexual health issues or trying to find information about sex often resort to unverified online sources or follow the unscientific advice of their friends. To address the widespread misinformation about sex, News18.com is running this weekly sex column, titled ‘Let’s Talk Sex’. We hope to initiate conversations about sex through this column and address sexual health issues with scientific insight and nuance.

In this article, we will explain everything you need to know about Trichomoniasis, from symptoms to treatment.

Ever heard of trichomoniasis? Don’t worry if you haven’t—it’s the most common STI that’s managed to fly under the radar for most of us. While everyone’s busy talking about chlamydia and gonorrhoea, trichomoniasis quietly affects millions each year, and here’s the kicker: most people don’t even know they’ve got it. Trichomoniasis, often whispered as “trich,” is a sexually transmitted infection that surprisingly ranks as one of the most prevalent yet under-discussed STIs out there.

Caused by a microscopic parasite called Trichomonas vaginalis, this infection often flies under the radar, in part because many people remain blissfully unaware of its existence. Despite its prevalence, it’s often overshadowed by the more infamous STIs like chlamydia and gonorrhoea.

One of the reasons trichomoniasis remains elusive is its tendency to be a silent invader. In fact, around 70 per cent of those infected show no symptoms at all. When symptoms do appear, they can vary significantly between individuals. For some, they might include itching, burning, or redness in the genital region, while others might experience discomfort during urination or a change in vaginal discharge.

It’s important to note that these symptoms can often mimic those of a urinary tract infection, adding to the confusion.

How Trichomoniasis Is Transmitted And Who Is At Risk?

Trichomoniasis is primarily transmitted through sexual contact. This includes vaginal intercourse, which is the most common way the Trichomonas vaginalis parasite makes its move from one person to another. While less common, it can also be spread through vulva-to-vulva contact or sharing unwashed sex toys.

It’s important to note that trich isn’t spread through casual contact, like hugging or sharing towels, although it’s always wise to maintain good personal hygiene practices. If you’re sexually active, you’re potentially at risk of contracting trichomoniasis. However, some factors can increase your susceptibility.

Having multiple sexual partners or having a history of other sexually transmitted infections can elevate your risk. Women, in particular, are more frequently diagnosed with trich than men, possibly due to the symptoms being more noticeable. But don’t be fooled—men can and do carry and transmit the infection, often without any obvious symptoms.

Symptoms Of Trichomoniasis: What To Watch Out For

Trichomoniasis might be lurking under the radar, but it can send out some signals if you know what to look for. However, here’s the tricky part: many people, especially men, might not notice any symptoms at all. But don’t let that fool you—it’s still important to be aware.

• Unusual Vaginal Discharge: A frothy, yellow-green discharge with a strong odour is a tell-tale sign.
• Itching or Irritation: Persistent itching around the vagina or discomfort during urination can also be indicators.
• Painful Intercourse: Trichomoniasis can make intimacy uncomfortable or even painful.
• Discharge from Urethra: A thin, white discharge might be noticeable.
• Burning Sensation: Painful urination or an uncomfortable sensation after ejaculation can occur.

These symptoms might appear within 5 to 28 days after infection, but keep in mind they can also show up much later or not at all. Even if symptoms are mild or absent, trichomoniasis can still be spread to partners. Early detection and treatment are crucial, so don’t hesitate to reach out to your healthcare provider if you suspect anything.

Remember, it’s always better to be safe and get checked out than to let this sneaky STI fly under the radar.

Treating Trichomoniasis: Get The Facts

Diagnosing trichomoniasis involves a simple test. If you suspect you have trich, visit your healthcare provider, who will likely perform a physical exam and may take a sample for lab testing. The test might involve taking a swab from the genital area or a urine sample. It’s quick and straightforward, allowing your doctor to confirm if trich is the culprit behind your symptoms.

The good news is that trichomoniasis is treatable with antibiotics, typically a single dose of metronidazole or tinidazole. It’s vital to complete the full course of medication, even if symptoms disappear, to ensure the infection is fully cleared. Your partner should also be treated to prevent reinfection. Fortunately, most people recover quickly with treatment, and symptoms usually resolve within a week.

Preventing Trichomoniasis: Steps To Protect Yourself

Practice Safe Sex: Condoms are your best friend in this scenario. While they aren’t 100 per cent foolproof, they significantly reduce the risk of transmitting trichomoniasis. Make it a norm to use them during every sexual encounter. Trust us, it’s not just about pregnancy prevention—it’s about protecting your health, too.

Limit Sexual Partners: Having multiple sexual partners can increase the risk of contracting trichomoniasis and other STIs. By limiting the number of people you’re intimate with, you reduce exposure to potential infections. It’s like curating your social circle for your health.

Open Communication: Before becoming intimate, discuss STIs with your partner. It might feel awkward, but an honest conversation is worth the peace of mind. Discussing your sexual histories can lead to more responsible choices and a healthier relationship overall.

Get Treated Immediately: If you or your partner test positive, seek treatment promptly. Trichomoniasis is usually treated with prescription antibiotics. Remember, both partners need to be treated to prevent reinfection. Completing the prescribed course is crucial, even if symptoms disappear quickly.

So, there you have it—trichomoniasis, the stealthy STI you probably never saw coming. But now that you’re in the know, you can handle it like a pro. Remember, regular check-ups and open conversations with your partner are key to keeping your sexual health in check.

And if you ever find yourself navigating the tricky waters of an STI diagnosis, don’t stress. You’re not alone, and there’s always help available. So go ahead, take charge of your health, and keep the conversation going. After all, knowledge is power, and you’re now armed with plenty of it!

Prof (Dr) Saransh Jain

Prof (Dr) Saransh Jain is the winner of the Swasth Bharat Rattan Award and is a Certified and Licensed Sexologist by the American Board of Sexology. He is currently a Senior Consultant at Dr SK Jain’s Burlingto…Read More

Prof (Dr) Saransh Jain is the winner of the Swasth Bharat Rattan Award and is a Certified and Licensed Sexologist by the American Board of Sexology. He is currently a Senior Consultant at Dr SK Jain’s Burlingto… Read More

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