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How Long Until Chlamydia Symptoms Appear?

By: Author Dr Akatakpo Dunn, MBBS, PG Dip Ultrasound, Prof Dip O&G (RCPI) Medical Director & Lead Obstetrician/Ultrasonologist, Verah Clinic & Maternity

Posted on Last updated:

How long until chlamydia symptoms appear is a common question men and women ask after intercourse.

So, What’s Chlamydia?

Chlamydia is a very common sexually transmitted infection (STI) (STI) caused by a bacteria called Chlamydia trachomatis that can affect both males and females. Chlamydia often causes no symptoms at all, especially in women. When symptoms do appear, they can include watery or cloudy discharge from the urethra or vagina, burning when you urinate, and pain during sex. Less commonly, it can cause red eyes (conjunctivitis) or joint pain as part of a complication called reactive arthritis.

If you’ve had intercourse without protection, then it’s possible you may have chlamydia infection with or without showing symptoms. More than half of people with chlamydia will not notice any symptoms. Untreated infection can still damage your reproductive organs quietly over time. Medscape

However, if you are asymptomatic with chlamydia infection, you may develop long term effects of chlamydia. If chlamydia is left untreated, it may cause pelvic inflammatory disease (PID), ectopic pregnancy, infertility and chronic pelvic pain in women, and testicular or epididymal infection in men. CDC+1

The World Health Organization (WHO) and the U.S. Centers for Disease Control and Prevention (CDC) advise regular screening for chlamydia, especially for sexually active women under 25 years and older women or men who have new or multiple partners, or other STI risk factors. World Health Organization+2CDC+2

Chlamydia can also be transmitted to babies during vaginal delivery, causing eye infection (conjunctivitis) or pneumonia in the newborn. It’s important to treat chlamydia early in pregnancy to reduce the risk of preterm birth and other complications for both mother and baby. CDC+1

Read More: Long Term Chlamydia Effects You Should Know

How do you get chlamydia infection?

Chlamydia is caused by the bacteria Chlamydia trachomatis, which may not cause symptoms in more than 50 percent of people infected. Medscape+1

Possible ways you could contract chlamydia are:

  • Having sexual intercourse without protection

  • Unprotected anal intercourse

  • Sharing adult toys without using a condom

  • Contact with an infected partner’s genital fluids

  • Oral intercourse

  • During childbirth from mother to baby Mayo Clinic+1

What are chlamydia symptoms in men

If you have chlamydia after unprotected sexual intercourse, you may have any of these symptoms:

  • Clear or white discharge from the penis

  • Purulent (pus-like) urethral discharge

  • Cloudy urethral discharge

  • Pain while urinating

  • Burning sensation while urinating

  • Painful and swollen testes (epididymitis)

  • Fever

  • Pain in the joints (reactive arthritis)

  • Red eye with purulent discharge (conjunctivitis from chlamydia)

Some men may also notice pain or discharge from the anus if they have had receptive anal sex. nhs.uk+

If you’re male with any of these symptoms weeks after intercourse, you could have chlamydia or another sexually transmitted infection. You should get tested to know for sure and to get the right treatment.

Learn more: Complete guide to chlamydia symptoms in men

Symptoms of chlamydia in women

Many women with chlamydia have no symptoms at all, which is why screening and regular STI checks are very important. nhs.uk

How long until chlamydia symptoms appear?

If you’ve had unsafe sexual intercourse, it usually takes about 1 to 3 weeks for chlamydia symptoms to appear in people who develop symptoms. Los Angeles County Public Health

In some infected men and women, it could take months for chlamydia symptoms to show up, and many people never notice any signs at all. If you’ve had unprotected intercourse without chlamydia symptoms, it still does not rule out the infection. The infection can stay in your body for months or even years if it is not treated.

You should get a chlamydia test to confirm if you have chlamydia or not, especially if you have a new partner, multiple partners, or any symptoms.

How can I detect chlamydia infection?

If you have chlamydia symptoms or had unprotected vaginal, anal or oral intercourse, you can see your doctor or visit a sexual health clinic for testing. Many areas also offer reliable home chlamydia test kits that send your sample to a laboratory. MedlinePlus

Testing is usually done with:

  • A urine sample

  • A swab from the vagina, cervix, urethra, anus or throat, depending on the type of sex you’ve had CDC+1

Most clinics use a very sensitive test called a NAAT (nucleic acid amplification test), and results are usually ready in a few days.

If positive, chlamydia can usually be easily treated and cured with antibiotics. For most non-pregnant adults, current CDC treatment guidelines prefer doxycycline tablets taken for 7 days, with azithromycin used as an alternative in some situations. CDC

If you are pregnant, early treatment and cure is possible. Drugs like azithromycin are considered safe and are commonly used during pregnancy. Your doctor or midwife will choose the best antibiotic for you and your baby. CDC

If you have symptoms in your throat, rectum or eyes, your doctor may take a swab from those areas as well.

You and your sexual partner(s) should avoid sex until you have finished treatment (and for 7 days after a single-dose treatment) and any symptoms have gone. Your partners also need testing and treatment so you don’t keep passing the infection back and forth. CDC+1

How can I prevent chlamydia in the future?

It’s important to improve your sexual health because you can get re-infected after treatment for chlamydia.

Ways chlamydia can be prevented are:

  • Total abstinence from intercourse

  • Limiting your number of sexual partners and avoiding overlapping partners

  • Early testing and treatment of any sexually transmitted infection (for you and your partners)

  • Consistent and correct use of condoms during intercourse (vaginal, anal and oral) World Health Organization+1

  • Counselling partners to get tested for chlamydia. If partners don’t get treated, you can get infected with chlamydia again

  • Using toys with condoms to prevent infection and cleaning them between users

  • Getting re-tested for chlamydia about 3 months after treatment to check you have not been re-infected (your doctor may also advise a test-of-cure 4 weeks after treatment if you are pregnant or if symptoms persist) CDC+2Healthline+2

  • Having regular STI checks according to your risk (for example, yearly or more often if you have new or multiple partners) following advice from your doctor or sexual health clinic

Now it’s your turn. Are you worried you may have chlamydia after intercourse? Let us know your symptoms in the comments, but remember this article does not replace seeing a doctor. If you think you might have an STI, please get tested and treated promptly.