STDs in Men: Symptoms, Causes, Diagnosis & Treatment 

Introduction

Sexually transmitted diseases (STDs), also known as sexually transmitted, are common worldwide, affecting millions of people every year¹. In cases, symptoms are mild and hence go unnoticed. This can often lead to delayed diagnosis². The good news is that most STDs are treatable, and many can be effectively managed when detected early³. This article will help understand the causes, symptoms, diagnostic methods, prevention and treatment of STDs in men in a simple way. 

What Are STDs in Men?

STDs are infections spread through sexual contact, including vaginal, anal, or oral sex. They can be caused by bacteria, viruses, fungus, or parasites². These infections commonly spread through unprotected sex with an infected partner³. Some infections, such as genital herpes and human papillomavirus (HPV), can spread through skin contact even when there are no visible sores or symptoms⁴. 

While STIs affect both men and women, the risk of complications is higher in women, however awareness in men is crucial. Men may carry and transmit these infections even without showing clear symptoms¹, especially during the early stages, which is why regular screening is important. Recognising STI risks also encourages men to get testing when needed, even if they are not feeling sick. Early detection allows for timely treatment, which can help avoid complications like infertility,  pelvic inflammatory disease (PID) in female partners, certain cancers, and long-term reproductive health issues⁵. Regular screening, practising safer sex, limiting exposure to risk factors (multiple partners, prostitution, etc.), and staying informed about vaccinations such as HPV and hepatitis B can greatly reduce the spread and impact of STIs³. 

Causes of STDs in Male

STIs are infections caused by bacteria, viruses, or parasites. The following describe the common causes of STDs in males: 

• Unprotected Sex: Having vaginal, anal, or oral sex without using condoms increases the risk of infection. 
• Multiple Sexual Partners: Having more than one sexual partner increases exposure to different individuals, raising the chances of getting an STI³. 
• Skin-to-Skin Contact: Some STIs, such as genital herpes and HPV, can spread through direct skin-to-skin contact with infected areas, even when there is no sexual intercourse^4,7. 
• Pre-Existing Infections: Having an existing STI increases the risk of getting other sexually transmitted illnesses. For example, having HIV lowers body’s immunity and allows other STIs like HPV to occur. Also vice-versa, that is, sores or breaks caused by STIs like herpes can make it easier for infections like HIV to enter the body⁸.  
• Sharing Needles or Syringes: Using or reusing needles that have been in contact with infected blood can spread infections such as HIV and hepatitis⁹. 

STD Signs and Symptoms in Men

STIs in men may be asymptomatic or they may show some certain signs and symptoms depending upon the type of infection. It is important to understand these for timely diagnosis and medical care. 

Common early signs of STDs in males include: 

• Burning sensation while urinating⁷ 
• Cracked skin or rashes³ 
• Unusual discharge from penis³
• Painless sores or ulcers on the mouth or genitals⁷ 
• Itching or irritation of genitals⁵ 
• Flu-like symptoms³(fever, chills, cough, body ache, etc.) 

Some other signs and symptoms of STDs seen in males could be: 

• Persistent painful urination (dysuria) (or painful bowel movement)⁷ 
• Pain and inflammation of the testes and prostate 
• Problems with sexual function or ejaculation (sexual dysfunction) 
• Painful ulcers, warts or cauliflower-like growths over genitals³ 
• Urethral discharge (white, green or yellow)^3,7 
• Infertility⁵ 

Note: The male STD warning signs and symptoms mentioned above are general and can differ from person to person. Having these do not always indicate an STI; they can also be a result of other medical conditions. If you observe any of these or are worried, it is recommended to see a doctor for proper testing and diagnosis. 

Common STDs in Men

There are different types of STIs that can occur in men. The common types of male STDs are: 

• Chlamydia: Caused by the bacterium Chlamydia trachomatis. It spreads through unprotected vaginal or anal sex with an infected partner. It can infect the urethra, rectum, or throat. Can cause frequent urination, testicular pain, and urethral discharge^3,9. 
• Syphilis: Caused by the bacterium Treponema pallidum. It can cause severe complications if left untreated. Spreads through vaginal, anal, or oral sex. Mainly spreads when a syphilis sore comes in contact with another person’s skin. The first sign is usually a painless sore that may appear on the genitals, anus, mouth, or lips¹⁰. 
• Human Papillomavirus (HPV): Spreads through vaginal or oral sex. The main symptom is the development of painless warts on the penis or anus. If left untreated, high-risk cases can develop into cancers¹⁰. 
• Gonorrhoea: Caused by the bacterium Neisseria gonorrhoeae. Transmitted from an unprotected vaginal, anal or oral sex. It can cause infection in the throat, genitals or rectum. The most common category affected is young individuals (15-24 years). Symptoms include penile discharge and pain while urinating¹⁰. 
• Human Immunodeficiency Virus (HIV): Caused by a virus transmitted through infected blood, semen, vaginal fluids, or rectal fluids¹⁰. It spreads mainly through unprotected sex or sharing contaminated needles. It causes no symptoms during the initial stages; in some flu-like symptoms can be seen³.  
• Trichomoniasis: Caused by the parasite Trichomonas vaginalis. It is transmitted by sexual interaction with an infected partner and may infect the urethra in men. Higher chance of spreading the infection in men who are not circumcised. The common symptoms include itching or irritation inside the penis, pain on urination or ejaculation¹⁰. 
• Hepatitis B Virus (HBV): Caused by the hepatitis B virus. It spreads through sexual contact, exposure to infected blood, body fluids or semen. Symptoms include headache, muscle pain, fatigue, loss of appetite, etc. Severe conditions can affect liver health¹⁰. 
• Genital Herpes: Caused by two types of viruses, Herpes simplex virus type 1 (HSV-1) and Herpes simplex virus type 2 (HSV-2). It doesn’t always transmit by sexual intercourse; it can even spread through skin-to-skin sexual contact. It causes painful blisters, which heal very slowly. This infection does not have any cure, rather, it has to be managed¹⁰. 

Diagnosis of STDs in Males

STIs in men are diagnosed using specific laboratory tests that detect infections caused by bacteria, viruses, or parasites. The common types which the doctors recommend include: 

• Medical History: Doctors begin by collecting a detailed sexual and medical history to assess risk factors. This includes asking about unprotected sexual intercourse, the number of sexual partners, any previous history of STIs, etc³. 
• Physical Examination: Doctors might look for symptoms such as redness, swelling, or inflammation in the genital area, presence of warts or abnormal growths on the genitals, etc^3,10. 
• Laboratory Tests: Doctors might go for laboratory tests if the infection is suspected. These may include: 
• Nucleic Acid Amplification Test (NAAT): Mostly done on urine or swab samples taken from the urethra, throat, rectum, or genital sores. Used to detects  infections, specifically  chlamydia and gonorrhoea, by identifying bacterial genetic material in the sample^3,5. 
• Antigen-Antibody Tests: Makes use of a blood sample to detect infections such as HIV, syphilis, and hepatitis B by identifying antibodies or antigens in the blood⁷. 

Early diagnosis helps prevent complications and reduces the spread of infection. For easy testing and early detection, STI panels are available that can look for several infections at the same time.

Treatment for STDs in Males

Treatment for STDs in males usually involves different types of medicines depending on the infection, along with supportive care to manage symptoms and avoid complications. The following are some common approaches that doctors use: 

• Antibiotic Therapy: Bacterial STIs like chlamydia, gonorrhoea, etc., are usually treated using prescribed antibiotics. Completing the full course is essential even if symptoms improve early. Examples: For chlamydia- azithromycin, doxycycline, etc., for gonorrhoea- ceftriaxone based regimens. Parasitic STIs like trichomoniases are also treated with antibiotics³. Examples: Metronidazole, tinidazole, etc¹¹. 
• Antiviral Medications: Viral infections such as HIV, herpes, and HBV are managed with antiviral drugs that help control the infection and reduce symptoms, though they may not fully cure it. Examples: Acyclovir, Valacyclovir, etc³. 
• Treatment of Sexual Partners: Doctors might also recommend treating partners, which may prevent reinfection. 
• Symptom Relief Medicines: These medicines are used to help reduce pain, fever, swelling, or general discomfort caused by STIs. They do not treat the infection itself, but they make the symptoms more manageable while other treatments work. Examples: Paracetamol, ibuprofen, etc. 

Note: This information is provided for general knowledge only and should not be taken as medical advice. Treatment options may differ based on the exact infection and individual health status. For an accurate diagnosis and treatment, please contact a qualified doctor (urologist or venereologist). 

Prevention Tips for STDs in Males

The following are the ways by which an STI can be avoided: 

• Always use condoms correctly during sexual activity to reduce infection risk⁶. 
• Avoid having several sexual partners³; try to stay in a mutually faithful relationship with one partner whenever possible. 
• Schedule regular STIscreenings³, especially if sexually active with new or numerous partners. 
• Avoid exchanging needles or sharp tools¹⁰. 
• Take preventive vaccinations like HPV and Hepatitis B vaccinations. HIV pre-exposure prophylaxis (PrEP) medications might be useful in case of high-risk individuals (e.g., those with more than one sexual partner)³. 

Note: Medications should only be taken under the guidance of a qualified doctor. 

• Get screened for STIs if have had a high-risk sexual contact, even if no symptoms are there. 
• Maintain open discussion with sexual partners about their sexual health histories. 
• Seek early medical advice if any unusual symptoms appear^3,5,10. 

When to Consult a Doctor?

Consult a doctor right away if symptoms like painful urination, unusual penile discharge, genital sores, blisters, warts, testicular pain or swelling, persistent itching, or unexplained rashes occur. Medical attention is also required if a fever or flu-like symptoms develop following a sexual contact. Even if no symptoms are there, being tested is recommended following unprotected intercourse, having several sexual partners, or knowing that a partner has been diagnosed with an STI, as many infections go undetected in the beginning³. 

Also Read: STD in Women: Symptoms, Causes, Diagnosis, Treatment & Prevention Guide 

Conclusion

STIs in males are common infections that can develop without visible symptoms; therefore, awareness and regular testing are essential. Early detection and treatment can help avoid complications and limit the risk of spreading the infection to others. Practising safe sex, getting screened when needed, and seeking medical advice for any concerning symptoms are key steps in maintaining good sexual and overall health. 

Frequently Asked Questions (FAQs)

References

1. Sexually transmitted infections (STIs). 2025. Doi: https://www.who.int/news-room/fact-sheets/detail/sexually-transmitted-infections-(stis) 

2. About Sexually Transmitted Infections (STIs). 2024. Doi: https://www.cdc.gov/sti/about/index.html 

3. Garcia MR, Leslie SW, Wray AA. Sexually Transmitted Infections. 2024. Doi: https://www.ncbi.nlm.nih.gov/books/NBK560808/ 

4. About Genital HPV Infection. 2025. Doi: https://www.cdc.gov/sti/about/about-genital-hpv-infection.html 

5. Kodner C. Sexually transmitted infections in men. Primary Care: Clinics in Office Practice. 2003;30(1):173-191. doi:10.1016/S0095-4543(02)00073-8. https://pubmed.ncbi.nlm.nih.gov/12825255/ 

6. Condom Use: An Overview. 2024. Doi: https://www.cdc.gov/condom-use/index.html 

7. Lytle-Barnaby R. Sexually Transmitted Diseases: An Overview. Delaware Journal of Public Health. 2016;2(2):26-31. doi:10.32481/djph.2016.04.009. https://pubmed.ncbi.nlm.nih.gov/34466839/ 

8. HIV and Opportunistic Infections, Coinfections, and Conditions. 2025. Doi: https://hivinfo.nih.gov/understanding-hiv/fact-sheets/hiv-and-sexually-transmitted-infections-stis 

9. What causes sexually transmitted diseases (STDs) or sexually transmitted infections (STIs)? 2017. Doi: https://www.nichd.nih.gov/health/topics/stds/conditioninfo/causes 

10. What are Sexually Transmitted Infections (STIs) or Diseases (STDs)? 2024. Doi: https://www.urologyhealth.org/urology-a-z/s/sexually-transmitted-infections 

11. Trichomoniasis. 2024. Doi: https://medlineplus.gov/ency/article/001331.htm 

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