Urinary & Sexual Health

Gonorrhoea: Symptoms, Testing, and Effective Treatment in the UK

7 min readLast reviewed 8 May 2026

Educational information — not medical advice.

This article was prepared by the OnlineDoctor24 editorial team and reviewed for factual accuracy against UK clinical guidance (NHS and NICE). It is not written by a doctor and does not replace personal medical advice. For symptoms specific to you, book an online doctor consultation.

Key points

  • Gonorrhoea is a common sexually transmitted infection (STI) caused by bacteria.
  • Many people do not experience any symptoms, making regular testing vital.
  • Common signs include unusual discharge and pain during urination.
  • If left untreated, it can lead to serious long-term health issues like pelvic inflammatory disease (PID) or infertility.
  • The infection is easily treated with a course of antibiotics.

What is Gonorrhoea?

Gonorrhoea, occasionally referred to as 'the clap', is a common sexually transmitted infection (STI) caused by the bacterium Neisseria gonorrhoeae. In the UK, it is the second most common bacterial STI diagnosed in sexual health clinics, particularly affecting young adults and those with multiple sexual partners.

The bacteria are typically found in the discharge from the penis and in vaginal fluid. The infection can affect the urethra (the tube that carries urine out of the body), the cervix, the rectum, the throat, and occasionally the eyes. It is primarily spread through unprotected vaginal, anal, or oral sex, and can also be passed from a pregnant woman to her baby during childbirth.

Recognising the Symptoms

One of the challenges with gonorrhoea is that approximately 1 in 10 infected men and 5 in 10 infected women will show no symptoms at all. This means you can be a carrier of the infection and pass it on to partners without knowing it.

When symptoms do occur, they usually develop within 1 to 14 days after exposure. In women, symptoms may include:

  • An unusual vaginal discharge which may be thin, watery, or green/yellow in colour.
  • Pain or a burning sensation when passing urine.
  • Pain in the lower abdominal area (less common).
  • Bleeding between periods or heavier periods.

In men, symptoms may include:

  • An unusual discharge from the tip of the penis, which may be white, yellow, or green.
  • Pain or a burning sensation when urinating (dysuria).
  • Inflammation (swelling) of the foreskin.
  • Tenderness or pain in the testicles (though this is less common).

If the infection occurs in the rectum, it may cause anal discharge, itching, or pain. Throat infections usually present no symptoms but can occasionally cause a sore throat.

Causes and Transmission

The infection is transmitted through the exchange of bodily fluids during sexual contact. It is important to note that gonorrhoea cannot be spread through casual contact, such as hugging, kissing, or sharing baths, towels, or toilet seats, as the bacteria cannot survive for long outside the human body.

Risk factors for contracting gonorrhoea in the UK include:

  • Having unprotected sex (not using a condom).
  • Having multiple sexual partners or a new partner whose sexual history is unknown.
  • A previous history of STIs, which may indicate a higher exposure risk.

Using a condom consistently and correctly during vaginal, anal, and oral sex is the most effective way to prevent transmission.

Diagnosis and Testing in the UK

If you suspect you have been exposed to gonorrhoea or are exhibiting symptoms, it is essential to get tested. In the UK, testing is available through NHS sexual health clinics (GUM clinics), some GP surgeries, and through reputable online testing services.

The test is simple and painless. For men, a urine sample is usually sufficient. For women, a self-taken vaginal swab (similar to a cotton bud) is typically used. If you have engaged in oral or anal sex, the clinician may also take swabs from the throat or rectum. Results usually take between a few days and a week.

In the UK, NICE guidelines recommend that anyone testing positive for gonorrhoea should also be screened for other STIs, including Chlamydia, HIV, and Syphilis, as co-infections are common.

Treatment Options and Recovery

The good news is that gonorrhoea is curable with the right treatment. Because some strains of the bacteria have developed resistance to certain antibiotics, the UK Health Security Agency (UKHSA) regularly updates treatment protocols to ensure effectiveness.

The standard treatment usually involves a single antibiotic injection (ceftriaxone) given into the buttock or thigh. In some cases, if an injection is not possible or appropriate, a high dose of antibiotic tablets may be prescribed. You should notice an improvement in symptoms within a few days, though some discharge or pelvic pain may take up to two weeks to disappear completely.

It is vital to complete the full course of treatment and to avoid any sexual contact—including oral sex—until you and your partner(s) have finished treatment and a clinician has confirmed you are clear. This prevents the 'ping-pong' effect of passing the infection back and forth.

Potential Complications of Untreated Gonorrhoea

Ignoring symptoms or failing to get tested can lead to serious health complications. In women, untreated gonorrhoea can spread to the reproductive organs, causing Pelvic Inflammatory Disease (PID). PID can lead to long-term pelvic pain, ectopic pregnancy (where the pregnancy develops outside the womb), and infertility.

In men, the infection can cause painful inflammation of the tubes in the testicles, potentially leading to reduced fertility. In rare cases, if the bacteria enter the bloodstream, it can cause Disseminated Gonococcal Infection (DGI), which can result in joint pain, skin rashes, and even life-threatening inflammation of the heart valves or brain lining.

When to See an Online GP or Sexual Health Professional

You should seek medical advice if you notice any changes in your genital health, such as unusual discharge, pain when urinating, or unexplained pelvic pain. Furthermore, if a sexual partner informs you they have tested positive for an STI, you must get tested even if you feel perfectly healthy.

An online GP consultation can be a discreet and efficient first step. A GP can discuss your symptoms, provide advice on testing kits, and explain the treatment process. If you have already received a positive test result from a laboratory, an online GP can often help facilitate the necessary prescription treatments or refer you to a local specialist clinic for the required antibiotic injection.

Red flags — when to seek urgent help

Call 999 or go to A&E if you experience any of the following:

  • Severe lower abdominal or pelvic pain
  • High fever or chills accompanying genital symptoms
  • Painful swelling of the scrotum or testicles
  • Severe eye pain, redness, or discharge (neonatal or adult conjunctivitis)
  • Painful, swollen joints combined with a skin rash

Frequently asked questions

Common questions UK patients ask about gonorrhoea.

How an online doctor can help

This article is for general information only and does not replace personal medical advice from a qualified doctor. Content is reviewed against UK NHS and NICE guidance by the OnlineDoctor24 editorial team and is not authored by a medical doctor. If your symptoms worsen or you are unsure, please book a consultation with a GMC-registered GP.

See a UK GP about this today

Same-day video or phone consultations with GMC-registered GPs. Treatments, sick notes and referrals when clinically appropriate.