Infection with gonorrhea and chlamydia causes two of the most common sexually transmitted diseases (STDs). Syphilis, another STD, occurs less often, but can be serious if it is not treated. STDs can be passed by vaginal, anal, or oral sex. This page will explain:

If you think you may be at risk for gonorrhea, chlamydia, or syphilis, get tested. These diseases will do the least harm if they are caught early.

Gonorrhea and Chlamydia

Both gonorrhea and chlamydia can occur in the mouth, the genitals, and the rectum. The infections also can appear in the eyes of a newborn. In women, the most common place they grow is the cervix (the opening of the uterus). From there, they can spread into the uterus and fallopian tubes. They also may grow in the urethra (the opening through which urine is passed). Teenaged girls are at greater risk than adults for both of these infections, although they can occur at any age.


Gonorrhea and chlamydia often have no symptoms. When symptoms do occur, they may show up 2 days to 3 weeks after infection.

The most common symptoms in women include:

The most common symptoms in men include:

If you have any of these symptoms, see your doctor.

Health Risks

Both gonorrhea and chlamydia can cause severe problems:


To find out if you have gonorrhea or chlamydia, your doctor may take a sample from your throat, cervix, urethra, or another area where there may be an infection. You may have more than one STD at the same time. Thus, your doctor may test you for other STDs. In most cases, if you are found to have either gonorrhea or chlamydia, your doctor will go ahead and treat you for both diseases.


Gonorrhea and chlamydia can be treated at the same time with antibiotics. It is important to take all of your medicine. Your partner also must be treated. You can pass gonorrhea and chlamydia to your partner even while you are being treated. If you have either disease, avoid sexual contact until both you and your partner have finished treatment.


Syphilis occurs in stages. It is more easily spread in some stages than in others. If not treated, syphilis may affect your heart, blood vessels, and nervous system. It can cause brain damage, blindness, paralysis, and even death. If syphilis is treated early, it will cause less damage.


Syphilis first appears as a painless sore called a chancre. It lasts 10 days to 6 weeks after contact with the disease. You also may have swollen lymph glands in the groin area.

If not treated, the next stage begins 1 week to 3 months later when a rash may appear. In most cases, the rash is on the soles of the feet and palms of the hands. Flat warts also may be seen on the vulva, outside the vagina. During this stage, you may feel like you have the flu. This stage is highly contagious.

The rash goes away in a few weeks or months, but that does not mean the disease is gone. It is still in your body. This is called the latent period. Years later, the disease may return.

How Syphilis Is Spread

Syphilis is spread by contact with a chancre. It also can be spread by touching the rash, warts, or infected blood during the second stage of infection. It enters the body through a cut in the skin or mucus membrane.


In the early stages, your doctor can examine discharge from open sores to see if you have syphilis. A blood test also may be done. It may need to be done more than once. If you have other STDs, you may be given a blood test for syphilis.


Syphilis is treated with antibiotics. If it is caught and treated early, long-term problems can be prevented. Antibiotics should clear up the infection. Because it is easy to spread the disease in the first and second stages, you should avoid sexual contact until your treatment and your partner’s treatment is finished.

Who Is At Risk?

Anyone who has had sex can get an STD. But the risk is higher in young women and those who:

Problems During Pregnancy

If you are pregnant when you have gonorrhea, chlamydia, or syphilis, problems may occur for both you and your baby. The infection can be passed from mother to baby and may cause these problems:

Because of these risks, pregnant women are tested for syphilis. Pregnant women also may be offered testing for gonorrhea and chlamydia. If the mother is infected, she then can be treated during pregnancy.


Even if you already have had gonorrhea, chlamydia, or syphilis, there are things you can do to keep from getting them again. These safeguards also help protect against other STDs:

Related: How to Use a Condom


If you think you may be at risk for gonorrhea, chlamydia, or syphilis, get tested. These diseases will do the least harm if they are caught early. Prompt treatment and protecting yourself against getting an STD again are the best ways to take care of your health.


Chlamydia: A sexually transmitted disease that can cause pelvic inflammatory disease, infertility, and problems during pregnancy.

Ectopic Pregnancy: A pregnancy in which the fertilized egg begins to grow in a place other than inside the uterus, usually in the fallopian tubes.

Gonorrhea: A sexually transmitted disease that may lead to pelvic inflammatory disease, infertility, and arthritis.

Infertility: A condition in which a couple has been unable to get pregnant after 12 months without the use of any form of birth control.

Miscarriage: The spontaneous loss of a pregnancy before the fetus can survive outside the uterus.

Sexually Transmitted Disease (STD): A disease that is spread by sexual contact.

Syphilis: A sexually transmitted disease that is caused by an organism called Treponema pallidum; it may cause major health problems or death in its later stages.

Vulva: The lips of the external female genital area.