Post focus: Short- and long-term STI complications — recognition, emergency priorities, pathogen-specific medical/surgical management, rehabilitation, partner care, prevention and follow-up.
Learning objectives
- Classify STI complications as immediate, short-term, long-term, pregnancy/neonatal or psychosocial.
- Recognise red flags requiring resuscitation, admission, surgery, ophthalmology, gynaecology, urology, paediatrics or infectious-disease referral.
- Manage PID, ectopic-pregnancy risk, epididymo-orchitis, disseminated gonococcal infection, severe herpes, syphilis, neonatal infection and abscesses.
- Plan long-term assessment for infertility, chronic pelvic pain, sexual dysfunction, cancers, hepatitis, HIV and recurrent disease.
- Provide a complete prevention and rehabilitation package rather than treating only the presenting symptom.
1. Why complications matter
Many STIs are asymptomatic or minimally symptomatic, so tissue damage can progress before the patient presents. Gonorrhoea and chlamydia are major causes of PID, tubal infertility and ectopic pregnancy; genital ulcers increase HIV acquisition/transmission; untreated syphilis can injure the brain, heart and eyes; HPV causes anogenital and oropharyngeal cancers; hepatitis B/C can cause cirrhosis and hepatocellular carcinoma; and HIV causes progressive immune failure without effective ART.
2. Complication map
| Time frame | Examples | Immediate priorities |
|---|---|---|
| Immediate (hours–days) | Sepsis, severe pain/retention, gonococcal conjunctivitis, torsion mimic, acute PID/ectopic pregnancy, urinary obstruction, anaphylaxis. | ABCDE, analgesia, pregnancy test, surgical/ophthalmic review, cultures/NAAT, prompt empiric therapy. |
| Short-term (days–weeks) | PID, tubo-ovarian abscess, epididymo-orchitis, DGI, proctitis, genital ulcer complications, neonatal conjunctivitis/pneumonia. | Admit when severe; IV/IM antibiotics, drainage when indicated, monitor response at 48–72 h. |
| Long-term (months–years) | Infertility, ectopic pregnancy, chronic pelvic pain, urethral stricture, chronic epididymal pain, recurrent herpes, neurosyphilis, cancers, chronic hepatitis/HIV and psychosocial harm. | Screen, treat the pathogen, offer specialist referral, rehabilitation and prevention of reinfection. |
3. Initial emergency assessment
- ABCDE and sepsis: oxygen if hypoxaemic, IV access, bloods/cultures, fluids and antibiotics for sepsis according to local protocol.
- Pregnancy status: urine/serum hCG in anyone who could be pregnant with abdominal/pelvic pain, bleeding or fever; urgently assess ectopic pregnancy.
- Targeted examinations: abdomen/pelvis, genital/perianal lesions, scrotum, eyes, skin/joints, neurologic status and nodes.
- Specimens before antibiotics if they do not delay lifesaving care: blood cultures, NAAT/culture/AST, lesion PCR, HIV/syphilis and pregnancy testing.
- Immediate referrals: surgery/urology for torsion/retention, gynaecology for ectopic/PID/abscess, ophthalmology for corneal disease, paediatrics for neonatal infection, infectious disease/neurology for DGI/neurosyphilis.
4. Acute and short-term complications
4.1 Pelvic inflammatory disease and tubo-ovarian abscess
Recognition: lower-abdominal pain plus cervical-motion, uterine or adnexal tenderness, often with fever, discharge, dyspareunia or abnormal bleeding. A tubo-ovarian abscess causes persistent fever, severe unilateral pain, adnexal mass or sepsis.
Investigations: pregnancy test, CBC/CRP, renal/liver tests, HIV/syphilis, gonorrhoea/chlamydia NAAT, urine culture, pelvic ultrasound and blood cultures if febrile. Consider appendicitis, torsion, ectopic pregnancy and miscarriage.
Outpatient example: ceftriaxone 500 mg IM once plus doxycycline 100 mg orally twice daily for 14 days plus metronidazole 500 mg orally twice daily for 14 days, subject to Uganda protocol. Review at 72 hours.
Admit/IV therapy: pregnancy, severe illness, vomiting, sepsis, abscess, inability to follow treatment, uncertain surgical diagnosis or no improvement at 72 hours. Use IV broad-spectrum therapy covering gonorrhoea, chlamydia and anaerobes; drain abscesses if indicated.
Discharge counselling: pelvic rest, analgesia, partner treatment, HIV/syphilis testing, contraception and fertility counselling. Retest for chlamydia/gonorrhoea at approximately three months.
4.2 Ectopic pregnancy
Prior PID increases tubal ectopic risk. Any reproductive-age patient with pelvic pain, vaginal bleeding, syncope, shoulder-tip pain or shock requires urgent pregnancy testing and ultrasound. Resuscitate haemorrhage, crossmatch blood and involve gynaecology; do not attribute pain to an STI until ectopic pregnancy is excluded.
4.3 Epididymo-orchitis and infertility
STI-related epididymitis presents with unilateral pain/swelling and dysuria or discharge; torsion must be excluded. Obtain NAAT/culture and urine tests. Example STI regimen: ceftriaxone 500 mg IM once plus doxycycline 100 mg twice daily for 10 days. Add enteric cover only when indicated by practices/urinary risk and local guidance. Elevate the scrotum, rest, use cold packs and safe analgesia; review within 72 hours. Abscess, infarction, persistent mass or severe systemic illness needs admission/urology.
4.4 Disseminated gonococcal infection (DGI)
Suspect DGI with fever, migratory polyarthralgia, tenosynovitis, pustular acral lesions, septic arthritis, meningitis, endocarditis or perihepatitis. Collect NAAT/culture from genital, pharyngeal and rectal sites and blood/synovial/skin specimens; request AST. Admit and treat with ceftriaxone 1 g IM/IV every 24 hours for arthritis-dermatitis syndrome; CNS or endocarditis requires ceftriaxone 1–2 g IV every 12–24 hours with specialist-directed duration. Add chlamydia therapy if not excluded. Drain purulent joints and assess for meningitis/endocarditis.
4.5 Gonococcal conjunctivitis
Copious purulent discharge, chemosis, severe pain or reduced vision can rapidly destroy the cornea. Irrigate with saline, take conjunctival specimens, give systemic ceftriaxone (adult example 1 g IM once; paediatric/neonatal dose follows weight-based protocol), involve ophthalmology urgently and assess for DGI. Topical treatment alone is inadequate.
4.6 Severe genital herpes
Complications include urinary retention, sacral radiculopathy, proctitis, meningitis, encephalitis, disseminated skin/visceral disease and severe illness in HIV or pregnancy. Admit severe, dehydrated, immunocompromised or neurologic cases; use IV acyclovir under specialist guidance, renal-adjusted. Uncomplicated first episode commonly receives acyclovir 400 mg orally three times daily for 7–10 days. Assess pregnancy near delivery and neonatal risk.
4.7 Syphilis complications and Jarisch–Herxheimer reaction
- After penicillin, fever, chills, myalgia or transient lesion worsening within 24 hours may be Jarisch–Herxheimer reaction; give fluids/antipyretic, monitor pregnancy and distinguish from anaphylaxis.
- Urgently assess ocular, otic or neurologic symptoms; routine benzathine penicillin does not adequately treat neurosyphilis. Use specialist IV aqueous penicillin G and CSF/ocular evaluation.
- Cardiovascular/tertiary disease requires specialist imaging and prolonged management; do not delay HIV testing and partner services.
4.8 Ulcer-associated complications
- Chancroid buboes can suppurate; aspirate through intact skin and treat the infection—avoid incision that creates chronic sinus/fistula.
- LGV can cause severe proctitis, strictures, fistulae and lymphatic obstruction; treat doxycycline 100 mg twice daily for 21 days and refer complicated disease.
- Donovanosis can be destructive and mimic cancer; confirm where possible, treat for at least three weeks/until healed and biopsy atypical lesions.
4.9 Neonatal and congenital complications
- Gonococcal ophthalmia can cause corneal ulceration/blindness; chlamydia can cause conjunctivitis and pneumonia; HSV can cause skin, eye, mouth or disseminated encephalitis; congenital syphilis can cause stillbirth, hydrops, bone/teeth/hearing/neurologic disease.
- Urgently involve paediatrics, collect specimens, give weight-based systemic therapy and evaluate the mother/partner. Antenatal testing and maternal penicillin for syphilis are the key prevention interventions.
5. Long-term complications and comprehensive management
| Sequela | How it presents | Management pathway |
|---|---|---|
| Tubal infertility | Failure to conceive after 12 months (earlier evaluation with risk factors) after PID/chlamydia/gonorrhoea. | Fertility history, semen analysis, ovulation assessment, tubal patency testing and referral; avoid blaming either partner. |
| Ectopic pregnancy | Pregnancy with pain/bleeding/syncope. | Emergency ultrasound, resuscitation, methotrexate or surgery by gynaecology. |
| Chronic pelvic pain/dyspareunia | Pain >3–6 months after PID, sometimes with normal tests. | Exclude recurrent infection/endometriosis/adhesions; pelvic physiotherapy, analgesia, mental-health and pain-specialist care. |
| Male infertility/chronic epididymal pain | Reduced fertility, pain or testicular atrophy after epididymo-orchitis. | Urology examination, semen analysis, ultrasound and pain/fertility referral. |
| Urethral stricture | Weak stream, spraying, retention, recurrent infections. | Uroflow/post-void residual, urethrography/cystoscopy and urology reconstruction/dilation plan. |
| HPV-related cancer | Cervical, anal, penile, vulval, vaginal or oropharyngeal precancer/cancer. | HPV vaccination, age/risk-appropriate screening, biopsy and oncology treatment. |
| Chronic hepatitis B/C | Often silent; fibrosis, cirrhosis, portal hypertension or hepatocellular carcinoma. | HBV/HCV tests, liver function, viral load/fibrosis assessment, antiviral referral, vaccination and alcohol reduction. |
| HIV disease | Recurrent infections, weight loss, TB/opportunistic disease or neurocognitive symptoms. | Confirm diagnosis, rapid ART linkage, viral-load monitoring, OI prophylaxis and psychosocial support. |
| Recurrent HSV/sexual dysfunction | Recurrences, fear of transmission, erectile or arousal problems. | Episodic/suppressive antivirals, counselling, couple communication and sexual-health referral. |
| Neurosyphilis/ocular disease | Cognitive/neurologic change, uveitis, hearing or visual loss. | Urgent specialist assessment, CSF/ocular testing and IV penicillin regimen. |
6. Managing infertility after STI complications
- Confirm duration and both partners’ goals; offer counselling because stigma and grief are common.
- Evaluate both partners: menstrual/ovulation history, semen analysis, pelvic ultrasound, tubal patency (HSG/HyCoSy) and endocrine tests as indicated.
- Treat active infection and ensure partner treatment before invasive fertility procedures.
- Refer for ovulation induction, tubal surgery, intrauterine insemination or IVF according to findings and available services.
- Discuss prevention of reinfection, safer conception with HIV, and psychological/financial support.
7. Long-term follow-up schedule
- 48–72 hours: PID, DGI, epididymitis, severe ulcers or neonatal infection—check response, adherence, adverse effects and complications.
- 7–14 days: persistent ulcers, gonorrhoea test of cure when indicated, wound/eye review and partner treatment.
- 3 months: retest chlamydia/gonorrhoea/trichomoniasis because reinfection is common; review recurrent herpes and contraception.
- Syphilis: repeat quantitative serology according to stage/national protocol; investigate inadequate titre decline or new symptoms.
- Pregnancy/neonate: antenatal repeat testing, neonatal examination and hearing/vision follow-up as indicated.
- Years: cervical/anal cancer screening, HPV vaccination catch-up, HBV/HCV liver monitoring and HIV viral-load/ART care.
8. Prevention of complications
- Early testing and treatment for symptomatic and asymptomatic infections in priority populations.
- Consistent condoms/dental dams, fewer concurrent partners, mutual testing and prompt partner treatment.
- Hepatitis B and HPV vaccination; cervical cancer screening and treatment of precancer.
- HIV combination prevention: condoms, PrEP, PEP after eligible exposures, ART and viral-load suppression.
- Antenatal syphilis/HIV/HBV screening and timely maternal treatment; neonatal prophylaxis and follow-up.
- Antimicrobial stewardship, culture/AST for suspected gonorrhoea resistance and avoidance of repeated empiric courses.
- Sexual-health education, violence prevention, confidentiality and stigma-free services.
9. Nursing, rehabilitation and patient education
- Use a trauma-informed, confidential approach; ask about pain, mood, relationships, violence and fertility concerns.
- Monitor vital signs, urine output, pain, fever, abdominal/scrotal findings, vision and neurologic status.
- Administer antibiotics/antivirals safely, document dose/route/time, check allergy/pregnancy/renal function and monitor anaphylaxis.
- Teach medication completion, abstinence until treatment is complete, partner notification, condom use, vaccination and danger signs.
- Arrange coordinated referrals: gynaecology, urology, ophthalmology, paediatrics, oncology, HIV/hepatitis and mental-health services.
10. Worked emergency cases
Case 1: PID with shock
A pregnant patient has fever, severe abdominal pain, hypotension and guarding. Start ABCDE/resuscitation, urgent pregnancy/ectopic and sepsis pathway, cultures and broad-spectrum IV antibiotics, and immediate gynaecology/surgical review. Do not discharge with oral STI medication alone.
Case 2: DGI
Fever, migrating joint pain, tenosynovitis and pustular lesions suggest DGI. Admit, culture blood/joint/skin and all exposed mucosal sites, give ceftriaxone 1 g daily under specialist guidance, drain septic joints and treat chlamydia if not excluded.
Case 3: infertility after “silent” infection
A couple presents after 18 months trying to conceive; the woman had prior untreated chlamydia. Evaluate both partners, assess tubal patency and semen, screen for active infection and offer fertility referral rather than assuming the woman is the cause.
11. Quick self-test
- Name four immediate STI complications requiring emergency action.
- What is the minimum outpatient PID regimen in the example above?
- Which chronic conditions can HPV, HBV/HCV, HIV and syphilis cause?
- Why should both partners be evaluated in infertility?
- What is the purpose of three-month retesting?
Answers
- Examples: sepsis, ectopic pregnancy, torsion, gonococcal conjunctivitis, DGI, severe PID/abscess, urinary retention or neonatal infection.
- Ceftriaxone 500 mg IM once plus doxycycline 100 mg twice daily for 14 days plus metronidazole 500 mg twice daily for 14 days, subject to local protocol.
- HPV: anogenital/oropharyngeal cancers; HBV/HCV: cirrhosis/HCC; HIV: immune failure/OIs; syphilis: neurologic, ocular and cardiovascular disease.
- Infertility is multifactorial; male and female factors coexist and shared assessment prevents blame and delays.
- Reinfection is common even after successful treatment and partner therapy.
Further study and source material
- WHO consolidated operational handbook on STIs.
- WHO STI fact sheet.
- CDC PID guidance.
- CDC epididymitis guidance.
- CDC gonorrhoea and DGI guidance.
- Uganda Clinical Guidelines 2023 — confirm national doses and referral pathways.
Take-home: The goal is not merely to clear discharge or ulcers. Prevent permanent damage by treating early, looking for pregnancy and surgical emergencies, managing partners, screening for co-infection, providing long-term fertility/cancer/HIV/hepatitis care and ensuring follow-up.
