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טריכומוניאזיס

Trichomoniasis is a sexually transmitted infection (STI) caused by a tiny germ called trichomonas vaginalis. It can lead to pain and discharge from the vagina or penis, but it often does not cause any symptoms. This means you can pass it on without knowing you have it.

At a glance

  • Trichomoniasis is a common sexually transmitted infection caused by a tiny germ.

  • Symptoms can include unusual discharge, itching, discomfort, or soreness when peeing.

  • Many people, especially men, have no symptoms but can still pass on the infection.

  • It is diagnosed by testing a swab of discharge or a urine sample.

  • It is treated with antibiotics like metronidazole, and sexual partners also need treatment.

  • Untreated trichomoniasis can lead to complications such as increased risk of HIV.

  • Using condoms correctly and having fewer sexual partners can help prevent it.

המשך לקרוא למטה

What is trichomoniasis?

How do you get trichomoniasis?

Trichomonas vaginalis is a protozoan, which is a tiny germ, similar to bacteria. It can infect your genital area. That is, the vagina and urethra in women, and the urethra and sometimes the prostate gland in men.

This infection is passed on to other people by having sex (intercourse). This infection does not usually go further into your body and so does not tend to be as serious as some other sexually transmitted infections (STIs).It can also be completely cured, unlike some other STIs.

STIs are passed between sexually active partners - any sexual contact may enable this, not necessarily penetrative sex. Sharing sex toys between partners can also pass it on.

In England in 2016, there were 7,075 new diagnoses of trichomoniasis, compared to 202,546 of chlamydia, 36,244 for gonorrhoea and 31,860 for genital herpes.

As with most STIs, it is most common in younger people under the age of 25. In England, there are ten times as many cases of trichomoniasis in black ethnic minority populations as there are in the general population. Other than in this group of the population, trichomoniasis is uncommon in the UK.

המשך לקרוא למטה

Symptoms in women

  • ה הפרשה נרתיקית is common. This is typically greeny-yellow and may be 'frothy'. The discharge usually has an unpleasant or fishy smell.

  • Your vagina and vulva may be itchy and uncomfortable. The irritation may extend into your groin. Sex may be painful.

  • You may have pain in the lower part of your tummy (abdomen).

  • It may be sore when you pass urine.

  • No symptoms occur in some women. However, you can still pass on the infection even if you have no symptoms.

Symptoms in men

  • Discharge from the penis is common.

  • It may be sore when you pass urine.

  • You may pass urine frequently (due to irritation inside the penis).

  • No symptoms occur in most infected men. However, you can still pass on the infection even if you have no symptoms.

Trichomoniasis is usually passed on by having sexual contact (vaginal, oral or anal sex) with an infected person. As no symptoms may occur in both men and women who are infected, you can pass on the infection without realising it.

Trichomoniasis is the most common non-viral sexually transmitted infection (STI) in the world. It is less common in the UK. However, it is thought that many cases are still not recognised and are not diagnosed. It can be cured with antibiotic treatment.

המשך לקרוא למטה

You can be tested for trichomoniasis at your GP or by visiting a genitourinary medicine (GUM) clinic. It is important to obtain the correct diagnosis, as the same symptoms can be caused by a number of different infections:

  • A sample (swab) of the discharge from your vagina or penis is sent to the laboratory to be tested. This may be taken by a healthcare professional, or they may show you how to take one yourself.

  • Trichomoniasis is sometimes seen by chance when a smear test is done in women.

  • A sample of urine from men may also show the infection.

An תרופה אנטיביוטית called metronidazole is the common treatment. You and your partner should be given treatment at the same time and you should avoid having sex (intercourse) for at least one week after receiving your treatment.

Tinidazole is an alternative antibiotic medicine that is sometimes used.

Does my sexual partner need treating?

Yes. Partners should also be treated even if they do not have symptoms of trichomoniasis. You and your partner should be treated at the same time. Anybody you have been sexually active with in the four weeks before your symptoms started should be treated.

Some other points about trichomoniasis

  • After you are treated, you may get the infection back if your sexual partner was not treated, or if you have sex with a new partner who has this infection.

  • Other STIs are more common in people with trichomoniasis. You (and your partner) may be advised to be tested for other infections.

הריון

If you have untreated trichomoniasis during pregnancy, you have an increased risk of having an early labour and a baby with a low birth weight. You are also more at risk of אלח דם after your baby is born.

In women

It may go on to cause מחלת דלקת אגן, and you are more likely to develop another infection called bacterial vaginosis.

In men

Trichomoniasis can, rarely, cause an unpleasant infection of the prostate gland (called prostatitis).

HIV

If you have untreated trichomoniasis, you have an increased risk of developing HIV infection if you have sex (intercourse) with someone who is infected with HIV.

אי פוריות

In both men and women, trichomoniasis can result in reduced fertility.

As trichomoniasis is passed on through sexual intercourse, abstinence is the most effective way to prevent it. Otherwise, using a condom is the best way. Use a condom for vaginal or anal sex. For oral sex with a man, use a condom on the penis. For female oral sex, and for women who have genital to genital contact, use a dam (a latex or polyurethane sheet. These are available online).

Limiting the number of sexual partners you have will reduce the chance of contracting it.

Do not douche (actively wash the vulva/vagina with water or soap/other cleansers) - this gets rid of the normal bacteria in this area and may increase the risk of developing infections, including STIs.

Wash sex toys between uses and cover them with a condom before using.

Do not abuse alcohol or drugs - these increase risky behaviours and put you more at risk of contracting an STI.

Have regular STI tests via your local sexual health clinic, particularly before having sex with a new partner - both partners should be tested.

If you are pregnant and have trichomoniasis, or think you might do, get tested and treated to reduce the risk of a premature birth or low-birth-weight baby.

שאלות נפוצות

Can trichomoniasis affect parts of my body other than my genitals?

No, trichomoniasis does not usually spread deeper into your body. It primarily affects the genital area, specifically the vagina and urethra in women, and the urethra and sometimes the prostate gland in men.

What is the difference between trichomoniasis and other common STIs in the UK?

Trichomoniasis is a common non-viral sexually transmitted infection globally, but it is less common in the UK compared to infections like chlamydia, gonorrhoea, and genital herpes. However, it can be completely cured with antibiotics, unlike some other STIs.

If I don't have symptoms, can I still pass on trichomoniasis?

Yes, even if you experience no symptoms, you can still pass on the infection to others. Many women and most men with trichomoniasis do not show any symptoms, but they can still transmit it through sexual contact.

Are there any specific situations where trichomoniasis is more common in the UK?

In the UK, trichomoniasis is uncommon except within black ethnic minority populations, where there are ten times as many cases compared to the general population. It is also more common in younger people under the age of 25, similar to most other STIs.

Can I get tested for other STIs at the same time if I have trichomoniasis?

Yes, if you have trichomoniasis, you and your partner may be advised to be tested for other sexually transmitted infections as well, because other STIs are more common in people who have trichomoniasis.

קריאה נוספת והפניות

המשך לקרוא למטה

About the authorView full bio

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ד"ר רייצ'ל הדסון, MRCGP

General Practitioner and Medical Author

MBChB, MRCGP (2008), BSc (Medical Science), DFSRH, DRCOG, DCH

Dr Rachel Hudson, is an NHS GP working in the North West of England.

About the reviewerView full bio

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ד"ר רוזלין אדלמן, MRCGP

MRCGP

Dr Rosalyn Adleman, is an NHS GP working in north London.

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