Ask Your Own Question
Dr. Steve Merris
Category: Internal Medicine Specialist

Medical School - New York University

Internship in Internal Medicine - Beth Israel Medical Center

Residency in Internal Medicine - Beth Israel Medical Center

Fellowship in Pulmonary and Critical Care Medicine - Columbia University Medical Center

Type Your Question Here...
Dr. Steve Merris is online now
A new question is answered every 9 seconds

False positive herpes test results and chances for erroneous results in HSV test

Resolved Question:

Hi doctor, I recently got tested for HSV and the result came to be positive. But I am sure that I am not likely to have herpes. However, I have had sex with my girlfriend and another woman. They also don’t have any infections. Even I also haven’t experienced any symptoms of herpes. How come the result be true in my case? Can herpes tests show erroneous results? What are the chances of false positive in HSV test? How can I get this confirmed? Please help. Thanks for your time.

Submitted: 4 Days
Category: Community
Expert:  Dr. Steve Merris replied 4 Days.

Thanks for your question and concern. I can understand your concern about genital herpes and HSV infection. Herpes is a viral infection caused by Herpes Simplex Virus. There are mainly two types of herpes viruses. They are HSV type 1 and HSV type 2. Of these, HSV type 2 is responsible for genital herpes. Both of these infections cause ulcers, blisters and sores in genital and facial areas. Type one of herpes causes cold sores usually in oro facial parts. But they can co exist and can exist vice versa, through oral sex practices. So both of these can exist in both oral or facial areas of body. Type 2 HSV is commonly seen in genital areas. They cause ulcers, sores, blisters and fever blisters in those areas. A positive test result means you either have got infected or your result is false. That means you may not have infection but the test shows so. There are a number of herpes confirmation tests available and all are reliable in one or other form.

It is worth noting that you need not have an outbreak or symptoms of herpes to have virus in you. Herpes Simplex Virus can stay in human body for a lifetime without causing any significant visible outbreaks, for years. During this dormant period itself, it can get transmitted to others. This make diagnosis of herpes erroneous and difficult. Blood tests and serum tests are done to find infection. There are antibodies of herpes which make it easy to find presence of virus. But no method has been found to determine the age of infection and how long it has been since the first outbreak. In your case, your girlfriend or the woman or both are likely to have herpes. They are unknowingly transmitting it to others through sex. The worst part of the disease is that carrier need not be aware of the infection and transmit it to others. Moreover tests are difficult to confirm infection and it is advised to take more than one test to get it confirmed. This is because various tests have various methods of determining the infection and has different chances of false positive. 

Long before tests had high rate of false positive and false negatives for genital herpes and other variants of Herpes Simplex Virus. Now tests have become more specific and false positives have become reduced. Moreover some tests are not able to distinguish between HSV type 1 infection and type 2 infection. This prevails now also but there is no importance on the variety of virus. This is because, medicines used to treat symptoms of both HSV 1 and HSV 2 are same. Only the area where it is applied changes. Now tests are available for both HSV type 1 and type 2. If you have done a herpes type 2 serology test, and got a positive result, you are more likely to have herpes. Mostly, you might have got the infection earlier and not now. In some rare cases when there are no outbreaks, there is a possibility of false positive. However efficacy of tests depends on the type of test conducted. Now, in your case, you have got a positive test result. It is important to make up your mind, not to spread the infection to anyone else. You can consult your doctor for more details and for medication. Mostly you can avoid severity of outbreaks using antiviral medications like Valtrex and Acyclovir. But it is recommended that you should use them by the prescription of a doctor. Hope my answer helps. Take care.

Category: Internal Medicine Specialist

Medical School - New York University

Internship in Internal Medicine - Beth Israel Medical Center

Residency in Internal Medicine - Beth Israel Medical Center

Fellowship in Pulmonary and Critical Care Medicine - Columbia University Medical Center

Dr. Steve Merris and 4 other Medical Specialists are ready to help you

DoctorSpring in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on DoctorSpring rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as DoctorSpring in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • I was really worried when I was asked to wait for a Urologist’s consultation. Here I got in touch with a Urologist and with question-answers over the next week I could rest easy! She gave me detailed explanation on my condition and assured ...

    Theresa H.
  • After I was diagnosed with Endometriosis, I searched the internet for all the questions but only added to my confusion. Within hours of posting the question here I got a reply from a nice and knowledgeable OBGYian. The Doctor cleared all my ...

    Vanessa M.
  • I really liked your ask a doctor service. The Doc was nice and helped me with precise answers. Keep going. Good Luck

    Susan C.
  • The replies from the MDs helped us with some peace of mind and prepared us for attending physicians of my daughter. The process was simple.

    Renold D.
< Last | Next >

Meet The Experts:

  • Dr Rodney Samaan
    Cardiology MD, MPH, BS

    Private Practice - Progress rodney-samaan

  • Dr Suvro Banerjee
    Cardiology MD, FRCP(London), FRCP(Edin), FICC

    Apollo Gleneagles Hospit suvro-banerjee

  • Dr Karen Weldon

    WellStar Cobb Hospital

  • Dr James McAllister
    Orthopedics Orthopedic Surgeon

    Cabo Orthopedics, cabodo james-mcallister

  • Dr Sudhir Kumar
    Neurologist MBBS, MD, DM (Neurology)

    Apollo Hospitals, Hydera sudhir-kumar

  • Dr Rajiv Kumar Srivastava
    Cardiac Surgery M.B.B.S., M.S.(Surgery), M.Ch.(CVTS)

    M.G.M.Hospital, Kamothe

  • Dr Bruce L. Feldman
    Internal Medicine Specialist , MD

    Private Practice at  bruce-feldman

  • Dr Joel Gotvald
    Vascular Surgery and Varicose Vein Treatment Specialist MD, FACS, RPVI

    Heart Hospital of Austin joel-gotvald

  • Dr Joshua Copeland
    Internal Medicine M.D.

    University of Maryland M joshua-copeland

  • Dr Elliot Goodman
    General and Bariatric Surgery MA and MB B Chir (Cantab)

    Beth Israel Medical Cent elliot-goodman

  • Dr David Piatok
    Endocrinology, Diabetes & Metabolism MD

    Chestnut Hill Hospital, david-piatok

  • Dr Michael R. Whetstone
    Plastic Surgery MD

    Las Colinas Centre for P michael-r-whetstone

  • Dr Goutham Cugati
    Neurosurgery & Spine Surgery MBBS, DNB

    Narayana Hrudayalaya Sur goutham-cugati

  • Dr Manish Malhotra
    Ophthalmology MBBS, DOMS, FLVPEI

    LV Prasad Eye Institute, manish-malhotra

  • Dr Marc Beaghler
    Urological Surgery & Pediatric Urology MD, MPH

    Community Memorial Hospi marc-beaghler

< Last | Next >

Related Medical Questions

  • Question Date Submitted

Email ID
Your password will be sent to this email.        signIn

Close x

Your account has been deleted.

PS: You can unsubscribe from emails from DoctorSpring, by going to
Unsubscribe link provided in them.