Published on Jul 12, 2023 | 5:17 PM
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.
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 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.
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
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
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.
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.
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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