Herpes symptoms in men

What is herpes in men?

Herpes is a viral infection caused by herpes simplex virus (HSV). HSV-1 commonly causes oral herpes, while HSV-2 is the main cause of genital herpes. However, either type can infect the genital area.

Herpes spreads mainly through skin-to-skin contact, including vaginal, anal or oral sexual contact. It can also spread when there are no visible sores because the virus can be released from apparently normal skin.

Doctar's HPV testing guide for men discusses another common viral STI, while its STI testing guide covers broader sexual-health testing.

What are the common herpes symptoms in men?

Many men with HSV have no symptoms or symptoms so mild that they do not recognise them as herpes. When symptoms occur, the most characteristic finding is a group of painful blisters or open sores around the genitals or anus.

Symptoms can include:

• small genital blisters

• painful open sores or ulcers

• itching around the affected area

• tingling or burning before sores appear

• painful urination

• pain around the penis, scrotum or anus

• swollen lymph nodes in the groin

• fever

• headache

• body aches

• tiredness

The first recognised outbreak can be more intense than later recurrences.

1. Tingling, itching or burning before sores

Herpes may announce itself before a visible lesion develops.

Some men experience tingling, itching, burning or unusual sensitivity in one area of the genital skin. This is sometimes called a prodrome.

Blisters or ulcers may appear afterward.

Recognising this pattern can be useful, but tingling alone does not prove herpes. Skin irritation, dermatitis and other infections can produce similar sensations.

Doctar's penis irritation guide explains some of the other causes of penile irritation.

2. Painful blisters

The classic genital herpes lesion starts as a small bump or blister.

Several lesions may appear together. They can break open, producing painful shallow ulcers, and eventually heal.

The lesions may occur on the penis, scrotum, groin, buttocks or around the anus. The precise location depends on where the virus entered the body.

A genital blister should not automatically be labelled herpes from appearance alone.

3. Genital ulcers or sores

After herpes blisters break, they can leave open, painful ulcers.

These sores may be uncomfortable when walking, sitting or having sexual contact. Urination can also become painful if urine passes over affected skin.

WHO notes that genital herpes commonly presents with painful blisters or ulcers, but other causes of genital ulcers can look similar.

That distinction matters because syphilis and other infections can also cause genital ulcers.

4. Painful urination

Some men with genital herpes develop burning or pain while urinating.

This may happen when urine contacts sores around the urethral opening or nearby genital skin. Urethral involvement can also occur.

But burning urination is not specific to herpes. Gonorrhea, chlamydia, urinary infections and prostatitis can produce similar symptoms.

Doctar's prostatitis symptoms and treatment guide covers another important cause of urinary burning and pelvic symptoms.

5. Fever and body aches

The first episode can sometimes feel like a more general viral illness.

A man may experience:

• fever

• headache

• body aches

• fatigue

• swollen lymph nodes, particularly in the groin

These symptoms are more likely during a first recognised episode than during later recurrences.

A mild or completely symptom-free infection is also common.

6. Swollen lymph nodes

Tender lymph nodes in the groin can occur during an initial genital herpes outbreak.

The lymph nodes are part of the immune system and can become enlarged while responding to infection.

Groin swelling is not specific to herpes, however. Other infections can produce the same finding.

7. Pain around the penis, scrotum or anus

The discomfort is not always limited to the visible sore.

Some men experience pain or sensitivity around the penis, scrotum, buttocks or anal area. The location depends on the infected area and the nerves involved.

If severe testicular pain develops, do not assume it is herpes. Conditions such as testicular torsion require urgent assessment.

Can herpes occur without visible sores?

Yes. Very commonly.

Many people with genital herpes have no recognised symptoms. HSV can also be transmitted when the skin looks normal because of asymptomatic viral shedding.

This is one reason a person may discover herpes after a partner has tested positive even though they have never noticed a blister.

It is also why you generally cannot determine exactly when or from whom an infection was acquired.

What does a herpes outbreak look like?

A typical outbreak may progress through several stages:

Tingling or burning → small bumps or blisters → painful ulcers → healing.

The first episode may involve multiple lesions and systemic symptoms. Recurrent outbreaks are usually shorter and less severe.

Not every case follows this textbook pattern.

Some people develop only a small crack, erosion or isolated sore, which is another reason visual diagnosis alone can be unreliable. WHO notes that genital ulcers can have several different causes.

Is herpes the same as HPV?

No.

Herpes is caused by herpes simplex virus, while HPV is caused by human papillomavirus.

Herpes typically causes painful blisters or ulcers when symptomatic. HPV can cause genital warts, while persistent high-risk HPV can contribute to certain cancers.

Doctar's HPV in men guide explains the differences.

Is herpes the same as syphilis?

No.

Syphilis is caused by a bacterium, while herpes is caused by a virus.

The distinction is particularly important because syphilis can cause a genital ulcer that may be painless, whereas herpes sores are typically painful. But appearances can overlap, so laboratory testing may be necessary. WHO specifically warns that clinical diagnosis of genital ulcers can be inaccurate because different infections can look alike.

Doctar's STI testing guide provides more information about STI testing.

How is herpes diagnosed in men?

If a man has an active blister or ulcer, a clinician may take a swab from the lesion for laboratory testing.

Testing a fresh lesion can be particularly useful because the virus can be detected directly from the affected area.

Blood tests for HSV antibodies are different. They can show that a person has been exposed to HSV-1 or HSV-2, but they do not necessarily tell when the infection occurred or where it is located.

Because testing has limitations, the appropriate test depends on symptoms and circumstances.

Can a man be tested for herpes without symptoms?

This is more complicated than many people realise.

Routine blood screening for herpes in people without symptoms is not generally recommended for everyone. The CDC has noted limitations of available blood tests and the potential for false-positive results, particularly when testing people at lower risk.

A clinician may consider type-specific testing in selected circumstances, such as when a person has a partner with genital herpes or a history that makes testing clinically useful.

If you are worried after a specific exposure, discuss the situation with a doctor rather than ordering a test without understanding what its result can and cannot tell you.

How is herpes treated?

There is currently no cure that removes HSV from the body.

Antiviral medicines can shorten outbreaks and reduce symptom severity. Medicines commonly used include acyclovir, valacyclovir and famciclovir.

Some people with frequent or particularly troublesome recurrences may be offered suppressive antiviral therapy, which involves taking antiviral medication regularly under medical supervision.

Treatment is generally most effective when started early during an outbreak.

This article does not recommend a specific medicine or dosage because treatment needs to be selected by a healthcare professional.

Can herpes outbreaks come back?

Yes.

HSV remains in the body after the initial infection and can reactivate later. Recurrent genital herpes is generally shorter and less severe than the first recognised episode.

The frequency varies widely.

Some men have repeated outbreaks, while others have few or none after the initial episode.

Illness, fever, stress and other factors may trigger reactivation in some people, although triggers are not identical for everyone.

Can herpes be transmitted without symptoms?

Yes.

This is a key point in herpes prevention.

The virus can be transmitted even when there are no visible sores. The risk is generally greatest when active lesions are present, but asymptomatic shedding means that avoiding visible outbreaks alone cannot eliminate transmission.

Condoms can reduce the risk but cannot completely prevent transmission because uncovered skin may carry the virus.

Should you have sex during an outbreak?

It is best to avoid sexual contact while sores or other symptoms are present.

WHO recommends avoiding sexual activity during symptomatic genital herpes episodes. Consistent condom use can further reduce transmission risk, although it does not eliminate it.

Communication with sexual partners matters too.

A herpes diagnosis can feel embarrassing, but it is a medical condition rather than a reflection of someone's character.

Can herpes affect fertility?

Genital herpes is not generally considered a major direct cause of male infertility.

However, an outbreak can temporarily make sexual activity painful or difficult. If a man has other fertility concerns, those should be investigated separately rather than automatically attributed to herpes.

Doctar's male fertility testing guide explains how male fertility is evaluated.

Can herpes affect sexual performance?

The virus itself is not a typical direct cause of erectile dysfunction.

Pain, anxiety, fear of transmission and concerns about recurrence can affect sexual confidence and intimacy, however.

If erection problems continue outside outbreaks, consider other possible causes. Doctar's erectile dysfunction guide provides additional information.

For ongoing sexual-health concerns, a sexologist consultation may also be appropriate.

When should a man see a doctor?

Get medical evaluation if you develop:

• unexplained genital blisters

• painful genital ulcers

• recurrent genital sores

• burning urination with genital lesions

• unexplained genital rash

• a new genital lesion after sexual contact

• fever or swollen groin lymph nodes with genital sores

Seek urgent medical attention if you are unable to urinate, become severely unwell, develop severe pain or have symptoms involving the eyes or nervous system.

Men with symptoms suggestive of genital herpes should also discuss HIV testing, because HSV-2 increases the risk of acquiring HIV.

Doctar's STI testing guide can help readers understand broader STI testing.

What should you do if your partner has herpes?

Don't panic.

A partner having HSV does not mean transmission is inevitable. The couple can discuss symptoms, condoms, testing and whether suppressive antiviral treatment is appropriate.

Avoid sexual contact during outbreaks, and speak openly with a doctor about individual transmission risk.

Doctar's STI prevention guide covers practical ways to reduce STI transmission.

In clinical practice, herpes is often recognised late because men may dismiss a small genital sore as friction, shaving irritation or a minor skin problem. If a lesion is new, painful or keeps returning, getting it examined while it is present can make diagnosis much easier.