I listed some of the diseases picture cause by chlamydia and why we need to be serious about it.

Mucopurulent cervicitis due to chlamydia showing ectopy, edema, and discharge.
Chlamydial conjunctivitis occurs in two forms:
- neonatal type: acquired from an infected cervix. Most common cause of red eye in a newborn.
- adult type: acquired by sexual contact. Causes a chronic indolent conjunctivitis resistant to standard topical antibiotics.
Perihepatic adhesions (arrow) seen at laporoscopyh usually associated with pelvic gonorrhoeal or chlamydial infection (Fitz-Hugh-Curtis syndrome).

Lymphogranuloma venereum. Primary lesion presenting as an ulcer on the penis.

Chlamydophila abortus
Pelvic Inflammatory Disease. Diffuse coalescences between uterus and fallopian tubes (the ovary is hidden behind the coalscences).

Reactive arthritis caused by immunologic reactions to both genital and GI pathogens is an infrequent complication of adult chlamydial infections. It sometimes produces skin and eye lesions and noninfectious recurrent urethritis.
Urethritis in a heterosexual man who presented with dysuria and yellowish discharge. A swab of the discharge showed no growth on culture, but was positive by polymerase chain reaction for Chlamydia trachomatis.