Chlamydia
Chlamydia is a common sexually transmitted infection (STI) caused by bacteria. While often asymptomatic, if left untreated it can lead to serious reproductive health complications including infertility.
Overview
Chlamydia is a common sexually transmitted infection (STI) caused by bacteria. While often asymptomatic, if left untreated it can lead to serious reproductive health complications including infertility.
Symptoms
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Causes
- •Chlamydia trachomatis bacteria
- •Unprotected sexual contact
- •Mother-to-child transmission during birth
Risk factors
- •Being sexually active under the age of 25
- •Having multiple sexual partners
- •Inconsistent condom use
- •History of previous STIs
How it progresses
3 stages- OnsetSymptoms appear, often triggered by a known cause.Often missed
- Active phaseSymptoms peak; self-care or short treatment usually helps.
- ResolutionSymptoms ease over days to weeks with proper care.
How it's diagnosed
- •Urine sample test
- •Swab of the affected area (cervix, urethra, or throat)
- •Nucleic acid amplification tests (NAATs)
Treatment options
General educational information only — no dosage advice. Always follow guidance from a qualified clinician.
- •Prescription oral antibiotics (Azithromycin or Doxycycline)
- •Treatment of all sexual partners
- •Follow-up testing in three months
- •Taking the full course of prescribed antibiotics
- •Abstaining from sex until treatment is complete
- •Informing recent sexual partners to get tested
- •Resting and staying hydrated
Complications
- •Reduced quality of life
- •Worsening symptoms over time
- •Recurrence of chlamydia
Prevention
- •Maintain a healthy lifestyle
- •See a clinician for routine check-ups
When to seek help
- •Symptoms persist beyond a few days
- •Symptoms interfere with daily activities
- •New or worsening symptoms appear
- •Concerning changes related to chlamydia
- Severe lower abdominal or pelvic pain
- High fever with genital discharge
- Nausea and vomiting associated with pelvic pain
- Sudden, sharp pain in the scrotum or testicles
In any emergency, call your local emergency number or go to the nearest emergency department.
Real-world questions
- ›Can Chlamydia cause headaches?
- ›Is Chlamydia reversible?
- ›How quickly does Chlamydia progress?
- ›Is Chlamydia hereditary?
- ›Can Chlamydia be prevented?
Explore related symptoms
Frequently asked questions
Possible causes of Chlamydia include Chlamydia trachomatis bacteria, Unprotected sexual contact, Mother-to-child transmission during birth.
Chlamydia is generally moderate, but severity can vary. Seek care if symptoms are severe or persistent.
Duration varies between individuals. Many cases improve with appropriate care, while others may persist longer and require ongoing management.
Some milder cases may improve with rest and self-care. If symptoms persist or worsen, consult a healthcare professional.
Consider seeing a clinician if symptoms are severe, persistent, worsening, or if you have any concerns related to general.
Sources
Information based on general medical references such as:
Last reviewed: May 2026