The complications are few and are quite rare, but when they occur they usually are as follows-

1. Pelvic inflammatory disease (PID), which is a serious infection of the reproductive organs in women.

PID can cause scarring of the fallopian tubes, which can block the tubes and prevent fertilization from taking place.

Many women become infertile because of PID.

2. Ectopic Pregnancy - Sometimes there will be scarring, which during pregnancy may interfere with the passage of the fertilized egg to the uterus from the fallopian tubes.

When this happens, the egg may attach itself to the fallopian tube. This condition is called as tubal or ectopic pregnancy.

This very serious condition results in a miscarriage and can cause death of the mother due to the rupture of the narrow tube and bleeding.

3. Infertility - Complications in men are rare and may sometimes cause sterility.

4. Urethritis & Strictures of urethra - Infection of the urine pipe called urethra lead to inflammation and itf untreated can lead to narrowing or blockage of the passage ( called stricture).

5. Epidydimitis in men is a complication due to the inflammation of epididymis (part of the testis), which are characterised by pain and swelling in the scrotal areas.