Urinary & Sexual Health

Understanding Urethritis: Symptoms, Causes, and Treatment in the UK

6 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

  • Urethritis is the inflammation of the urethra, the tube that carries urine from the bladder out of the body.
  • The most common symptom is pain or a stinging sensation during urination.
  • It is frequently caused by sexually transmitted infections (STIs), though non-infectious causes exist.
  • Effective treatment usually involves a course of antibiotics or antivirals.
  • Testing and partner notification are essential if an infection is suspected.

What is Urethritis?

Urethritis is a condition defined by the inflammation of the urethra. The urethra is the small tube responsible for transporting urine from the bladder to the outside of the body. In men, the urethra also carries semen during ejaculation.

While the condition can be painful and uncomfortable, it is a very common issue managed in UK sexual health clinics and GP surgeries. It is important to distinguish urethritis from a urinary tract infection (UTI) like cystitis; while cystitis affects the bladder, urethritis is localised specifically to the exit tube. However, the symptoms can often overlap, making a professional diagnosis vital for receiving the correct medication.

Common Symptoms of Urethritis

The symptoms of urethritis can vary slightly between men and women, though the hallmark sign is dysuria—pain or burning when passing urine. In some cases, the condition may be asymptomatic, meaning the person has no symptoms but can still pass an underlying infection to partners.

Symptoms in men include:

  • A burning or stinging sensation while urinating.
  • Discharge from the tip of the penis (which may be white, cloudy, or yellow).
  • Itching or irritation inside the penis.
  • Blood in the urine or semen.

Symptoms in women include:

  • Frequent and urgent need to urinate.
  • Discomfort or stinging during urination.
  • Abnormal vaginal discharge.
  • Pelvic or abdominal pain.

What Causes Urethritis?

Causes of urethritis are generally categorised into two groups: infectious and non-infectious. In the majority of cases seen in the UK, the condition is caused by a bacterial or viral infection.

Infectious Causes: Many cases are caused by sexually transmitted infections (STIs). These are often split into 'gonococcal urethritis' (caused by gonorrhoea) and 'non-gonococcal urethritis' (NGU). Common infectious agents include:

  • Chlamydia trachomatis (the most common cause of NGU).
  • Neisseria gonorrhoeae.
  • Mycoplasma genitalium.
  • Trichomonas vaginalis.
  • Herpes simplex virus (HSV).

Non-Infectious Causes: Inflammation can also occur due to physical irritation or injury. This might include:

  • Sensitivity to chemical irritants found in spermicides, soaps, or bubble baths.
  • Physical trauma from catheterisation or vigorous sexual activity.
  • Narrowing of the urethra (stricture).

Diagnosis and Testing in the UK

If you suspect you have urethritis, it is important to seek medical advice rather than attempting to self-diagnose. In the UK, you can visit your GP or a local sexual health (GUM) clinic. Diagnosis usually involves a physical examination and the collection of samples.

A healthcare professional may request a urine sample or take a small swab from the opening of the urethra to check for bacteria or white blood cells. If an STI is suspected, you will likely be offered a full screening to ensure all potential infections are identified. Many UK clinics now offer 'express' testing where samples are sent for molecular testing (PCR) to provide highly accurate results within a few days.

How is Urethritis Treated?

Treatment for urethritis depends entirely on the underlying cause. If the inflammation is caused by bacteria, a course of antibiotics will be prescribed. It is crucial to finish the entire course of medication, even if your symptoms improve quickly, to ensure the infection is fully cleared.

Common treatments include:

  • Antibiotics: Often a single dose or a one-week course of tablets like doxycycline or azithromycin for NGU.
  • Antivirals: If the cause is viral, such as the herpes virus, specific antiviral medications may be used to reduce the severity of the outbreak.
  • Avoiding triggers: If the cause is determined to be a chemical irritant, stopping the use of that product is usually sufficient for the urethra to heal.

While undergoing treatment, you are advised to avoid sexual contact (including oral sex) until the treatment is finished and your symptoms have resolved. This prevents reinfection and stops the spread of the condition to others.

Complications of Untreated Urethritis

When caught early, urethritis is easily treatable. However, if left untreated, the underlying infection can spread to other parts of the reproductive and urinary system, leading to more serious health complications.

In men, neglected urethritis can lead to epididymitis (inflammation of the tubes at the back of the testicles) or prostatitis. In women, the infection can ascend to the uterus and fallopian tubes, causing Pelvic Inflammatory Disease (PID). PID is a serious condition that can lead to chronic pelvic pain and, in severe cases, infertility or ectopic pregnancy.

When to see an Online GP

You should consult a healthcare professional as soon as you notice any pain during urination or unusual discharge. An online GP can provide a discreet initial consultation to discuss your symptoms and provide guidance on the necessary next steps.

If your symptoms are mild and you suspect they may be linked to a new soap or recent activity, a GP can help rule out other conditions like UTIs. If an STI is the likely cause, they can advise you on how to access testing and provide prescriptions for appropriate antibiotics where suitable. Online services are particularly helpful for those seeking quick advice without waiting for an in-person appointment at a busy local surgery.

Red flags — when to seek urgent help

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

  • High fever or chills
  • Severe pain in the lower abdomen or pelvis
  • Significant swelling or severe pain in the testicles
  • Inability to pass urine at all
  • Nausea and vomiting accompanying urinary symptoms

Frequently asked questions

Common questions UK patients ask about urethritis.

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.

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