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The Call-On-Doc Guide to Chlamydia

Published on Jul 12, 2023 | 5:17 PM

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What Is Chlamydia?

Chlamydia is a common bacterial sexually transmitted infection (STI) caused by Chlamydia trachomatis. It is one of the most frequently reported STIs in the United States and often spreads without noticeable symptoms, which is why routine testing is so important.

Chlamydia can infect the genitals, rectum, and throat and is easily treated with antibiotics when diagnosed early. If left untreated, it can lead to serious complications, including infertility.

Chlamydia Symptoms

Many people with chlamydia have no symptoms at all, especially in the early stages. When symptoms do occur, they may appear 1–3 weeks after exposure.

Common symptoms include:

In women

  • Abnormal vaginal discharge

  • Burning or pain during urination

  • Pelvic or lower abdominal pain

  • Pain during sex

  • Bleeding between periods

In men

  • Discharge from the penis

  • Burning during urination

  • Testicular pain or swelling

Rectal infection

  • Rectal pain or pressure

  • Discharge or bleeding

Because symptoms can be mild or absent, testing is the only reliable way to know if you have chlamydia.

chlamydia-symptoms

How Chlamydia Spreads

Chlamydia spreads through:

  • Vaginal sex

  • Anal sex

  • Oral sex

It does not require ejaculation to be transmitted and can be passed even when a person feels completely well.

how-chlamydia-spreads

How Chlamydia Is Diagnosed

Chlamydia is diagnosed using a nucleic acid amplification test (NAAT), which is highly accurate.

Testing may include:

  • Urine testing

  • Vaginal, cervical, rectal, or throat swabs

Routine screening is recommended for:

  • Sexually active women under 25

  • People with new or multiple partners

  • Anyone with STI symptoms

how-chlamydia-is-diagnosed

Chlamydia Treatment

Chlamydia is curable with antibiotics.

Common treatments include:

  • Doxycycline (most commonly recommended)

  • Azithromycin (in specific cases)

Important treatment notes:

  • Finish all prescribed medication

  • Avoid sexual activity for 7 days after completing treatment

  • Sexual partners should also be treated

  • Retesting is recommended in about 3 months to check for reinfection

What Happens If Chlamydia Is Untreated?

Untreated chlamydia can cause serious long-term health problems.

Possible complications include:

  • Pelvic inflammatory disease (PID)

  • Chronic pelvic pain

  • Ectopic pregnancy

  • Infertility

  • Epididymitis in men

  • Increased risk of acquiring other STIs

Early treatment dramatically reduces these risks.

Chlamydia Care With CallOnDoc

CallOnDoc offers confidential, judgment-free chlamydia care online.

With a virtual visit, you can:

  • Discuss symptoms with a licensed provider

  • Receive appropriate antibiotic treatment when indicated

  • Avoid in-person clinic wait times

  • Access discreet care, often within minutes

Healthcare that fits your life — not your calendar.

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Shelly House, FNP-BC,

updated 1/23/2026 Shelly House, FNP, is a Family Nurse Practitioner and Call-On-Doc’s trusted medical education voice. With extensive experience in telehealth and patient-centered care, Ms. House is dedicated to making complex health topics simple and accessible. Through evidence-based content, provider collaboration, and a passion for empowering patients, her mission is to break down barriers to healthcare by delivering clear, compassionate, and practical medical guidance.

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