Male STIs
STIs are infections that are usually passed from one person to another through unprotected vaginal, anal, or oral sex. Many are common, treatable, and manageable, particularly when diagnosed early. However, some infections can lead to serious complications if left untreated.
What are male STIs?
Male STIs (sexually transmitted infections) are infections that affect the male genital, urinary, or reproductive systems and are passed on mainly through sexual contact. Some STIs can also spread through skin-to-skin contact, infected blood, or sharing personal items such as sex toys, towels, or bedding.
Many STIs do not cause symptoms straight away. In some cases, men may have an infection without realising it, which means it can still be passed on to sexual partners. This is why regular sexual health testing is important, especially if you have a new partner, multiple partners, or unprotected sex.
At Welbeck, our urology and andrology specialists provide confidential assessment, testing, diagnosis, and treatment for a wide range of STIs affecting men. We understand that discussing sexual health concerns can feel uncomfortable, so we provide discreet, compassionate care in the private setting of our dedicated Men’s Health centre.
More information
Symptoms of STIs in men can vary depending on the infection. Some men develop symptoms within days, while others may not notice symptoms for weeks, months, or at all.
Common symptoms of male STIs include:
pain or burning when passing urine
discharge from the penis
sores, blisters, ulcers, or lumps on or around the penis
itching around the genitals
swelling in the groin
testicular pain or swelling
pain during ejaculation
lower abdominal or pelvic pain
non-specific urethritis (inflammation of the urethra)
rash on the body, hands, or feet
flu-like symptoms, such as fever and fatigue
You should arrange a sexual health assessment if you develop any of these symptoms, particularly after unprotected sex or sex with a new sexual partner.
There are many different types of sexually transmitted infections. Some are caused by bacteria, some by viruses, and others by parasites.
Chlamydia
Chlamydia is one of the most common bacterial STIs in the UK, particularly in younger adults.
Many men have no symptoms. But when symptoms do occur, they can include:
pain when passing urine
white, cloudy, or watery discharge from the penis
testicular pain or swelling
non-specific urethritis
discomfort around the tip of the penis
Chlamydia is usually treated with antibiotics. Without treatment, it can lead to epididymitis, fertility problems, and ongoing pelvic pain.
Gonorrhoea
Gonorrhoea is a bacterial infection that can affect the penis, rectum, throat, and eyes. Symptoms often appear quickly.
Symptoms may include:
green, yellow, or white discharge from the penis
pain when passing urine
testicular pain or tenderness
inflammation of the foreskin
rectal discomfort or discharge
Treatment usually involves antibiotics. Some strains of gonorrhoea are becoming resistant to antibiotics, so early diagnosis and specialist treatment are important.
Trichomoniasis
Trichomoniasis is caused by a parasite. It’s less common in men than in women, and many men do not develop symptoms.
Possible symptoms include:
irritation inside the penis
pain during urination or ejaculation
discharge from the penis
non-specific urethritis
The infection is treated with antibiotic medication.
Genital warts
Genital warts are caused by the human papillomavirus (HPV). They appear as small growths or lumps around the penis, anus, groin, or upper thighs.
Symptoms can include:
small flesh-coloured or grey bumps
itching or irritation
bleeding during sex in some cases
Genital warts are not usually painful, but they can be distressing and may spread without treatment. Treatment options include creams, freezing treatment, or minor procedures to remove the warts.
Genital herpes
Genital herpes is caused by the herpes simplex virus (HSV). Once infected, the virus remains in the body, and symptoms can return in flare-ups.
Symptoms can include:
painful blisters or sores around the penis or anus
itching or tingling before blisters appear
pain when passing urine
flu-like symptoms during the first outbreak
Antiviral medication can help reduce symptoms, shorten flare-ups, and lower the risk of transmission.
Pubic lice
Pubic lice, also called crab lice, are tiny insects that live in coarse body hair, most commonly pubic hair. They spread through close physical contact.
Symptoms may include:
itching in the genital area
visible lice or eggs in pubic hair
skin irritation or inflammation
small blue spots or blood spots on the skin
Treatment involves medicated creams or lotions and washing clothing and bedding thoroughly.
Scabies
Scabies is caused by tiny mites that burrow into the skin. It spreads easily through close skin contact, including sexual contact.
Symptoms include:
intense itching, especially at night
a raised rash
small burrow marks on the skin
irritation around the genitals, buttocks, or thighs
Scabies is treated using medicated creams or lotions. Close contacts and household members may also need treatment.
Syphilis
Syphilis is a bacterial infection that develops in stages. Early diagnosis is important because untreated syphilis can cause serious complications affecting the brain, heart, and nervous system.
Symptoms vary depending on the stage of infection and may include:
painless sores or ulcers on the penis, anus, or mouth
swollen glands
a rash on the palms of the hands or soles of the feet
flu-like symptoms
patchy hair loss
Syphilis is treated with antibiotics, usually penicillin injections.
HIV
Human immunodeficiency virus (HIV) attacks the immune system. Without treatment, HIV can weaken the body’s ability to fight infection.
Some people experience short-term flu-like symptoms after first becoming infected, while others have no symptoms for years. Symptoms can include:
fever
sore throat
swollen glands
fatigue
rash
weight loss in later stages
There’s currently no cure for HIV, but modern treatment allows most people to live long, healthy lives and reduces the risk of passing the virus to others.
Urinary tract infections (UTIs)
Urinary tract infections are not classed as STIs, but sexual activity can sometimes contribute to UTIs or make them more likely to occur. Some symptoms can also overlap with those of STIs.
Symptoms may include:
burning or pain when passing urine
needing to urinate more often
cloudy urine
lower abdominal discomfort
testicular pain in some cases
UTIs are usually treated with antibiotics. Your consultant may recommend testing to rule out an STI if symptoms overlap.
Male STIs are caused by bacteria, viruses, parasites, or fungi that spread during sexual activity or close physical contact.
Risk factors for developing an STI include:
having unprotected sex
having multiple sexual partners
having a previous STI
not using condoms consistently
sharing sex toys without cleaning them properly
having sex while under the influence of alcohol or drugs
having a partner with an untreated STI
Some infections, such as genital herpes, HPV, scabies, and pubic lice, can spread through skin-to-skin contact even if penetration does not occur.
At Welbeck, our specialists provide confidential STI testing and assessment. During your consultation, your consultant will ask about your symptoms, sexual history, and general health.
Depending on your symptoms, you may also need a physical examination.
Tests may include:
urine tests
swab tests from the penis, throat, or rectum
examination of sores, blisters, or rashes
tests for HIV and syphilis
ultrasound scans if testicular pain or swelling is present
Some infections can be diagnosed quickly, while others may require laboratory testing. In some cases, repeat testing may be recommended if symptoms continue or if you were tested shortly after exposure.
While it’s not always possible to prevent STIs completely, there are several ways to reduce your risk.
Ways to help prevent STIs include:
using condoms correctly during vaginal, anal, and oral sex
attending regular sexual health screenings
limiting how many sexual partners you have
avoiding sex if you or your partner has symptoms of an infection
discussing STI testing with new partners
avoiding sharing towels or bedding in cases of scabies or pubic lice
having the HPV vaccine if eligible
Regular testing is especially important because many STIs cause no symptoms.
Many STIs can be treated successfully, particularly when diagnosed early. However, untreated infections can sometimes lead to serious complications.
Possible complications include:
infertility
epididymitis (inflammation of the coiled tube (epididymis) at the back of the testicle)
chronic pelvic or testicular pain
prostatitis
reactive arthritis
increased risk of HIV transmission
damage to the heart, brain, or nervous system in untreated syphilis
long-term immune system damage from untreated HIV
Some infections can also affect emotional wellbeing, relationships, and confidence. Seeking treatment early can help reduce the risk of complications and improve long-term health outcomes.
Treatment depends on the type of infection, your symptoms, and your overall health. Your consultant will explain your diagnosis and recommend the most appropriate treatment plan for you.
Treatment options may include:
antibiotics for bacterial infections such as chlamydia, gonorrhoea, and syphilis
antiviral medication for herpes and HIV
medicated creams or lotions for scabies and pubic lice
cryotherapy or topical treatments for genital warts
pain relief medication
follow-up testing to confirm the infection has cleared
partner notification and testing
At Welbeck, our men’s health specialists are experts in their field and are dedicated to providing world-class care to every patient.
With access to colleagues across other specialties, our consultants are also able to refer within the Welbeck ecosystem if needed to ensure you receive the best possible treatment as quickly as possible, all under one roof.
All appointments, testing, treatment, and follow-up appointments take place within our state-of-the-art facilities, enabling us to deliver accurate diagnostics and advanced treatments.
Your health is important to us, so we strive to offer same-day appointments whenever possible.
Our consultants are recognised by the major health insurance companies. If you have private health insurance, your treatment at Welbeck can begin once you have obtained authorisation. We also provide care to self-paying patients. Learn more about the different payment options at Welbeck.
Get in touch today to book an appointment.
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Frequently asked questions
Yes. Many STIs cause no symptoms, especially in the early stages. Even without symptoms, you can still pass the infection on to other people. Regular sexual health testing is important if you're sexually active.
This depends on the infection. Some STIs can be detected within days, while others may take several weeks to show on a test. Your consultant can advise on the best timing for testing based on your exposure and symptoms.
Condoms greatly reduce the risk of many STIs, but they do not provide complete protection. Some infections, such as herpes, genital warts, and scabies, can spread through skin contact outside the area covered by a condom.



