The following are the most important diseases or complications that may be contributed to by chlamydial infections:
Respiratory system (J00-J99)
- Pharyngitis ((pharyngitis) (rare).
- Pneumonia (pneumonia), especially in newborns.
Eyes and eye appendages (H00-H59).
- Amaurosis (blindness)
- Opacification of the cornea
- Scarring of the cornea
Cardiovascular system (I00-I99)
- Elephantiasis – swelling of the infected area such as the labia (labia) or scrotum (scrotum) caused by lymphatic congestion.
Infectious and parasitic diseases (A00-B99).
- Recurrences (recurrence) of chlamydial infection.
Liver, gallbladder, and biliary tract-pancreas (pancreas) (K70-77; K80-K87).
- Perihepatitis – inflammation of the tissues around the liver.
- Pelveoperitonitis (peritonitis in the pelvic region).
- Peritonitis (inflammation of the peritoneum)
Mouth, esophagus (esophagus), stomach, and intestines (K00-K67; K90-K93).
- Proctitis (rectal inflammation).
Musculoskeletal system and connective tissue (M00-M99).
- Reactive arthritis (synonym: postinfectious arthritis/joint inflammation) – secondary disease after gastrointestinal (affecting the gastrointestinal tract), urogenital (affecting the urinary and genital organs), or pulmonary (affecting the lungs) infections; refers to arthritis in which pathogens are not (usually) found in the joint (sterile synovitis).
- Reiter’s disease (synonyms: Reiter’s syndrome; Reiter’s disease; arthritis dysenterica; polyarthritis enterica; postenteritic arthritis; posturethritic arthritis; undifferentiated oligoarthritis; urethro-oculo-synovial syndrome; Fiessinger-Leroy syndrome; English Sexually acquired reactive arthritis (SARA)) – special form of a “reactive arthritis” (see above. ); secondary disease after gastrointestinal or urogenital infections, characterized by the symptoms of Reiter’s triad; seronegative spondyloarthropathy, which is triggered especially in HLA-B27 positive persons by an intestinal or urinary tract disease with bacteria (mostly chlamydia); Can manifest as arthritis (joint inflammation), conjunctivitis (conjunctivitis), urethritis (urethritis) and partly with typical skin changes.
Neoplasms – tumor diseases (C00-D48).
- Cervical carcinoma (cervical cancer), with concomitant HPV infection.
- Ovarian cancer (ovarian cancer) – seropositivity (= individuals in whom antibodies to a specific antigen can be found) to Chlamydia/C. trachomatis occurred in 20% of ovarian cancer patients (12% of controls)
Psyche – Nervous System (F00-F99; G00-G99).
- Infection of the brain, especially in newborns.
Pregnancy, childbirth, and puerperium (O00-O99).
- Abortion (miscarriage)
- Extrauterine pregnancy – pregnancy outside the uterus; extrauterine pregnancy is present in approximately 1 to 2% of all pregnancies: Tubargravidity (tubal pregnancy), ovariangravidity (pregnancy in the ovary), peritonealgravidity or abdominalgravidity (abdominal pregnancy), cervicalgravidity (pregnancy in the cervix).
- Premature birth (birth of an infant before completion of the 37th week of pregnancy (SSW)).
Genitourinary system (kidneys, urinary tract – sex organs) (N00-N99).
- Adnexitis – inflammation of the fallopian tube and ovary.
- Bartholinitis – inflammation of the Bartholin glands (vaginal auricular glands).
- Cervicitis (inflammation of the cervix).
- Endometritis (inflammation of the uterus)
- Epididymo-orchitis (combined inflammation of the testis (orchis) and the epididymis (epididymis) – after acute epididymitis, persistent obstructive azoospermia (occlusive azoospermia; absence of sperm in the ejaculate due to occlusion of both vas deferens) occurs in about 10% of cases and oligozoospermia (sperm count < 15 million/milliliter) in 30%.
- Prostatitis (inflammation of the prostate).
- Female infertility (tubal sterility/occlusion of the fallopian tubes).
- Male sterility