Diagnosis of Sexually Transmitted Diseases

Sexually Transmitted Diseases are the most common infectious diseases caused by the micro organisms and spread through any type of sexual activity, involving the sex organs.  These diseases are also termed as sexually Transmitted Infections.

If your sexual life and present symptoms suggest that you have a Sexually Transmitted Infection, you must go for laboratory tests that can identify the cause and detect co infections you might also have contracted.

  • Blood tests-Blood tests can confirm the diagnosis of HIV or stages of syphilis.
  • Urine samples-Some infections can be confirmed with a urine sample.
  • Fluid samples-Testing fluid and samples from the sores may be done to diagnose the type of infection.


Testing for a disease in someone who is asymptotic is called screening. Most of the time, the screening is not a usual part of health care. But there are exceptions

  • Everyone-The one particular Sexually Transmitted Infection screening test suggested for everyone ages 13 to 64 is a blood or saliva test for human immunodeficiency virus (HIV), the virus that causes AIDS.
  • Pregnant women should take utmost care-Screening for HIV, hepatitis B, chlamydia and syphilis generally takes place at the first prenatal visit for all pregnant women. Gonorrhea and hepatitis C screening tests are advised at least once during pregnancy for women at high risk of these infections.
  • Women of age 21 and older-The Pap test screens for cervical abnormalities, including inflammation, precancerous changes and cancer. Starting at age 21, women should have a Pap test at least every three years.
  • Women under age 25 and sexually active-All sexually active women under age 25 should be tested for chlamydia infection. The chlamydia test uses a sample of urine or vaginal fluid you can collect yourself. Screening for gonorrhea is also recommended in sexually active women under age 25.
  • People with HIV-One already having HIV, raises the risk of catching other STIs. Frequent syphilis, gonorrhea, chlamydia and herpes tests for people with HIV. Women with HIV may develop aggressive cervical cancer, so they should have Pap tests twice a year to screen for HPV.