Health News Share Email Print 3 facts you should know about chlamydia When your doctor asks about your sexual activity, it’s important to be open and honest. Diseases like chlamydia can affect your health—and you might not realize you’re at risk. 3 surprising facts about chlamydia It's the most common STI (sexually transmitted infection). Chlamydia is caused by bacteria that can infect the uterus and fallopian tubes. It spreads easily. Chlamydia can spread to a partner through all types of sex—even without ejaculation. And it can spread from pregnant women to their babies. It rarely causes symptoms. But it can still cause health problems, including infertility. Should you be tested for chlamydia or other STIs? Take a quick quiz to help you decide. Reviewed 11/8/2023 Sources: American College of Obstetricians and Gynecologists. “Chlamydia, Gonorrhea, and Syphilis.” https://www.acog.org/womens-health/faqs/chlamydia-gonorrhea-and-syphilis. Centers for Disease Control and Prevention. “Chlamydia – CDC Detailed Fact Sheet.” https://www.cdc.gov/std/chlamydia/stdfact-chlamydia-detailed.htm. Office on Women’s Health. “Chlamydia.” https://www.womenshealth.gov/a-z-topics/chlamydia. Related stories Health information main Health tools go Select a health topic ADHD Aging Alcohol use disorder Allergies Alternative medicine Alzheimer's disease Arthritis Asthma Babies Backs Bladder Bones Brain Breast cancer Cancer Cancer prevention Caregiving Cervical cancer Children and parenting Cholesterol Colds Colorectal cancer Coronavirus Dental care Depression Diabetes Disaster preparedness Down syndrome Ears Eating disorders Emergencies End of life/Palliative care Environmental health Epilepsy Eyes Fall prevention Family and relationships Feet Fitness and exercise Flu Food safety Hair Headache Health assessments Health calculators Healthcare Heart attack Heart health Hepatitis Hernia High blood pressure Hips HIV/AIDS Holiday health Hormones Imaging Incontinence Joints Kidneys Knees Leukemia Liver Lung cancer Lungs Medications Men's health Menopause Mental health Multiple sclerosis Nails Nose Nutrition Obesity Oral cancer Ovaries Pain Parkinson's disease Pets Pneumonia Pregnancy Prostate cancer Rehabilitation Reproductive health Safety School health Sexuality Sexually transmitted infections Skin Skin cancer Sleep Smoking Sports injuries Stomach pain Stress and anxiety Stroke Substance use disorder Summer safety Surgery Teen health Throat Thyroid Travel Vaccines Vascular health Violence Vitamins and supplements Weight management Winter health Women's health Workplace health Wound care i Providers Family Medicine OB/GYN Infectious Diseases i Services Maternity Services RSS If you have questions or comments, please contact Randolph Health. Problems reading or opening a page? Legal restrictions and terms of use applicable to this site.