What complication can result from untreated chlamydia?

Each year up to 1 million women in the United States develop PID, a serious infection of the reproductive organs. As many as half of all cases of PID may be due to chlamydial infection, and many of these women don鈥檛 have symptoms. PID can cause scarring of the fallopian tubes, which can block the tubes and prevent fertilization from taking place. Researchers estimate that 100,000 women each year become infertile because of PID.

In other cases, scarring may interfere with the passage of the fertilized egg to the uterus during pregnancy. When this happens, the egg may attach itself to the fallopian tube. This is called ectopic or tubal pregnancy. This very serious condition results in a miscarriage and can cause death of the mother.

In men, untreated chlamydial infections may lead to pain or swelling in the scrotal area. This is a sign of inflammation of the epididymis. Though complications in men are rare, infection could cause, pain, fever, and sterility. Source(s): http://www.niaid.nih.gov/factsheets/stdc...

sterilxzation and possible bad things
Its true ... if untreated it can make you infertile. Its really easy to treat so I would go to your doctor if you think that you have it.
the complication that can result from untreated chlamydia is will not be able to have kids and many different STD's as well. Chlamydia a lot of the time will go with gonorrhea, and sometimes you break out into a fever and your pelvis becomes inflamed do to Chlamydia as well as many STD's.
Untreated Chlamydia can lead to Pelvic Inflammatory Disease (PID), infertility, increase risk to contracting HIV, and chronic pelvic pain.
http://www.cdc.gov/std/chlamydia/stdfact...