Post focus: Other STI syndromic approaches — principles and stepwise management of vaginal discharge/cervicitis, lower-abdominal pain/PID, anorectal syndrome, scrotal swelling/epididymitis and neonatal conjunctivitis, with investigations, doses, referral, partner care and follow-up.
Learning objectives
- Explain syndromic case management and when to combine it with point-of-care or laboratory testing.
- Use a five-step consultation: history/examination, syndrome diagnosis and treatment, education/counselling, partner management, and recording/follow-up.
- Recognise the principal syndromes besides urethral discharge and genital ulcers.
- Identify life-threatening non-STI mimics before giving empiric antibiotics.
- Choose safe, guideline-based regimens and adapt them for pregnancy, HIV, allergy and organ dysfunction.
1. What is syndromic management?
A syndrome is a consistent group of symptoms and signs that can be recognised at the point of care. Syndromic management uses validated flowcharts to treat the common organisms responsible for that syndrome at the first visit. It is accessible and prevents loss to follow-up where laboratory services are limited, but it can overtreat non-STI causes and miss asymptomatic infections. Always improve accuracy by taking specimens before treatment, testing where available and reviewing treatment response.
| The five steps | What the clinician does |
|---|---|
| 1. History and examination | Ask symptoms, sexual exposure, pregnancy, prior antibiotics, allergies and partner treatment; examine relevant sites and red flags. |
| 2. Syndrome diagnosis and treatment | Use the current national flowchart, collect tests, give empiric therapy when indicated and avoid unsafe duplicate antibiotics. |
| 3. Education and counselling | Explain diagnosis uncertainty, adherence, abstinence, condoms, HIV/syphilis testing, vaccination, PrEP/PEP and danger signs. |
| 4. Partner management | Confidentially notify/evaluate partners, provide treatment or referral and prevent reinfection. |
| 5. Recording and reporting | Document syndrome, sites, tests, medicines/doses, counselling, partner plan, follow-up and public-health notifications. |
2. Universal first-contact approach
- Stabilise: ABCDE, vital signs, pain, hydration, mental state and sepsis screen.
- Privacy and consent: explain sensitive questions, offer chaperone/interpreter, use gender-affirming and non-judgemental language.
- Five-P sexual history: partners, practices and exposed sites, protection, previous STIs/pregnancy prevention, and protection from pregnancy; ask last exposure and partner symptoms.
- Pregnancy and safeguarding: LMP/pregnancy test when relevant, sexual violence, coercion and child-protection concerns.
- Examine only what is indicated: abdomen/pelvis, genital/perianal sites, nodes, scrotum, throat, eyes, skin and joints.
- Collect tests before antimicrobials whenever this does not delay urgent treatment: NAAT/culture, wet mount, pregnancy test, HIV/syphilis and site-specific swabs.
- Safety-net: explain exactly when to return and where to go if symptoms worsen.
3. Vaginal discharge and cervicitis syndrome
3.1 Causes
- Physiological discharge and ovulation.
- Bacterial vaginosis (BV), trichomoniasis and vulvovaginal candidiasis (VVC).
- Cervicitis from gonorrhoea, chlamydia or M. genitalium.
- Retained foreign body, irritant dermatitis, desquamative inflammatory vaginitis, fistula or malignancy.
3.2 Clinical clues
| Feature | Suggests |
|---|---|
| Thin homogeneous grey/white discharge, fishy odour, pH >4.5 | BV; clue cells on microscopy. |
| Frothy yellow-green, offensive discharge, vulval irritation, strawberry cervix | Trichomoniasis. |
| Thick curdy discharge, intense itch/erythema, normal pH | VVC; usually no STI, but test for diabetes/HIV if recurrent. |
| Mucopurulent cervical discharge, friability, post-coital bleeding, pelvic pain | Cervicitis; test for gonorrhoea/chlamydia and assess PID. |
3.3 Tests
- Vaginal pH, whiff test and saline/KOH microscopy where available; NAAT for gonorrhoea/chlamydia/trichomonas and cervical swabs according to exposure.
- HIV/syphilis testing, pregnancy test and glucose/HIV assessment for recurrent candidiasis.
- Speculum examination for cervicitis, ulcers, retained foreign body or bleeding; bimanual examination for cervical motion/uterine/adnexal tenderness.
3.4 Treatment examples
| Diagnosis/syndrome | Common regimen (verify Uganda protocol) | Key cautions |
|---|---|---|
| BV | Metronidazole 500 mg orally twice daily for 7 days, or metronidazole gel 0.75% intravaginally daily for 5 days. | Avoid alcohol during treatment and at least 24 hours after; recurrent BV needs reassessment. Routine male-partner treatment is not generally recommended. |
| Trichomoniasis | Metronidazole 500 mg orally twice daily for 7 days (preferred for women); treat partners. An alternative in some protocols is 2 g orally once. | Pregnancy treatment is recommended; treat HIV-positive patients promptly. Avoid alcohol and review warfarin interactions. |
| VVC | Clotrimazole 500 mg intravaginally once, or 100 mg nightly for 6 nights; non-pregnant adults may use fluconazole 150 mg orally once where locally recommended. | Use topical azoles in pregnancy; avoid oral fluconazole in pregnancy unless specialist-directed. No partner treatment unless symptomatic balanitis. |
| Cervicitis, gonorrhoea possible | Current international example: ceftriaxone 500 mg IM once (<150 kg; 1 g if ≥150 kg) plus doxycycline 100 mg orally twice daily for 7 days if chlamydia not excluded. | Pregnancy commonly uses azithromycin for chlamydia; confirm national guidance. Test for PID, HIV and syphilis. |
Do not label every discharge “STI”: BV, candidiasis and physiological discharge require different care. Treat a partner for trichomoniasis or a confirmed STI, but not uncomplicated BV/VVC unless local guidance or symptoms indicate.
4. Lower-abdominal pain and pelvic-inflammatory-disease (PID) syndrome
4.1 Why it is an emergency-minded syndrome
PID is ascending infection of the endometrium, tubes, ovaries or pelvic peritoneum, often polymicrobial. Delayed treatment can cause infertility, ectopic pregnancy, chronic pelvic pain, tubo-ovarian abscess and sepsis. Treat empirically when clinical criteria are met; a normal ultrasound or negative NAAT does not exclude early PID.
4.2 Minimum clinical criteria
In a sexually active patient with pelvic/lower-abdominal pain and no better explanation, have a low threshold to treat when one or more of cervical-motion, uterine or adnexal tenderness is present. Supportive findings include fever, mucopurulent cervical discharge, elevated inflammatory markers, pain with intercourse, abnormal bleeding or positive gonorrhoea/chlamydia tests.
4.3 Differential and red flags
- Ectopic pregnancy, miscarriage, ovarian torsion/cyst rupture, appendicitis, urinary infection, renal colic, endometriosis and gastrointestinal disease.
- Admit/refer for pregnancy, severe illness, vomiting, sepsis, tubo-ovarian abscess, acute abdomen, inability to tolerate oral therapy, failed outpatient treatment after 72 hours or uncertain surgical diagnosis.
4.4 Investigations
- Pregnancy test immediately; urine dip/culture, NAAT for gonorrhoea/chlamydia, HIV/syphilis, CBC/CRP and renal/liver tests where available.
- Speculum/bimanual examination and pelvic ultrasound for abscess, ectopic pregnancy or alternative diagnosis; do not delay antibiotics for imaging.
4.5 Outpatient regimen 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. Use the Uganda/national regimen where it differs. Review within 72 hours; lack of improvement requires admission, imaging and specialist review.
4.6 Inpatient principles
Give IV broad-spectrum therapy covering gonorrhoea, chlamydia, anaerobes and enteric organisms; provide fluids, analgesia, antiemetics, VTE assessment, pelvic rest and surgical/gynecological review for abscess or peritonitis. Transition to oral therapy after clinical improvement to complete the recommended course.
5. Anorectal syndrome
5.1 Causes and symptoms
Gonorrhoea, chlamydia (including LGV), HSV, syphilis, mpox, trauma and inflammatory bowel disease can cause anorectal pain, tenesmus, bleeding, mucous/purulent discharge, ulcers or constipation. Ask about receptive anal intercourse without assuming orientation, and test the rectum as an exposure site.
5.2 Examination and tests
- Inspect perianal skin, ulcers, fissures, warts, abscess and discharge; perform gentle digital/speculum examination only with consent and when safe.
- Collect rectal NAAT for gonorrhoea/chlamydia, HSV PCR from ulcers, syphilis serology and HIV test; consider stool/IBD/colorectal evaluation if STI tests are negative.
- Severe pain, fever, fluctuance or urinary retention suggests abscess and needs surgical review.
5.3 Treatment examples
- Uncomplicated rectal chlamydia: doxycycline 100 mg orally twice daily for 7 days.
- Severe proctitis or suspected LGV (bleeding, ulcers, tenesmus, lymphadenopathy): doxycycline 100 mg twice daily for 21 days; test for gonorrhoea and treat concurrently if indicated.
- Gonorrhoea: ceftriaxone 500 mg IM once (<150 kg) or local equivalent; obtain culture/AST where possible.
- HSV proctitis: acyclovir 400 mg orally three times daily for 7–10 days or local equivalent; admit severe/immunocompromised patients.
6. Scrotal swelling, testicular pain and epididymitis syndrome
6.1 Never miss torsion
6.2 Causes
- STI epididymitis from gonorrhoea/chlamydia in sexually active adolescents/adults.
- Enteric epididymitis after urinary instrumentation, obstruction or insertive anal sex.
- Trauma, torsion of testicular appendage, hernia, mumps orchitis, tumour, TB or infarction.
6.3 Assessment
- Onset and speed of pain, fever, dysuria/discharge, sexual/anal exposure, trauma, urinary obstruction, mumps vaccination and prior surgery.
- Examine abdomen, inguinal canal, scrotum, epididymis, testis, cremasteric reflex and urethral meatus. Test for hernia.
- Urine NAAT/culture, HIV/syphilis, urinalysis and ultrasound when diagnosis is uncertain; ultrasound cannot reliably exclude torsion early.
6.4 Treatment examples
- Likely STI: ceftriaxone 500 mg IM once plus doxycycline 100 mg orally twice daily for 10 days.
- STI plus enteric risk: ceftriaxone 500 mg IM once plus levofloxacin 500 mg orally once daily for 10 days, only where local resistance and safety guidance support it.
- Supportive care: scrotal elevation, rest, cold packs, analgesia/NSAID if safe, hydration and abstinence until treatment is complete and symptoms resolve.
- Reassess if not improving within 72 hours; persistent swelling after antibiotics needs urology review for tumour, abscess, TB or infarction.
7. Neonatal conjunctivitis and infection prevention
Purulent conjunctivitis in a newborn may be gonococcal (rapid, copious, corneal-threatening), chlamydial (usually 5–14 days with mucopurulent discharge) or non-STI. This is an emergency: take conjunctival swabs for Gram stain/culture/NAAT, urgently involve paediatrics/ophthalmology, assess for sepsis and treat systemically according to the neonatal protocol. Also evaluate and treat the mother and partners; topical drops alone are insufficient for gonococcal disease.
8. Integrated testing and prevention package
- Offer HIV and syphilis testing, hepatitis B/C screening according to risk, and vaccination (HBV/HPV).
- Assess HIV PrEP/PEP, condoms, contraception and reproductive intentions; provide linkage to ART or antenatal care where needed.
- Collect tests from every exposed site; a negative urine test does not exclude rectal or pharyngeal infection.
- Use directly observed single-dose therapy where appropriate, dispense all doses of multidose courses and check understanding.
- Report notifiable conditions and antimicrobial resistance through the appropriate Ugandan system.
9. Partner management and abstinence
- With consent, notify partners according to pathogen and exposure period; use patient referral, provider referral or lawful expedited partner therapy.
- Partners should be evaluated, tested and treated; they should not simply take a patient’s leftover medicine.
- Avoid vaginal, anal and oral sex until the patient and partner(s) have completed therapy and symptoms have resolved—at least seven days after a single-dose regimen and through completion of a seven-day or longer course.
- Retest for chlamydia/gonorrhoea/trichomoniasis at about three months because reinfection is common; repeat testing earlier if re-exposed or symptoms recur.
10. Medication safety and contraindications
| Drug | Main precautions | Monitoring/adverse effects |
|---|---|---|
| Doxycycline | Avoid in pregnancy unless specialist; caution in children; renal/hepatic review. | Oesophagitis/photosensitivity; water/upright advice; separate iron/calcium/antacids. |
| Metronidazole | Avoid alcohol; caution severe liver disease, neurologic disease and warfarin. | Nausea, metallic taste, neuropathy with prolonged use; interaction can raise INR. |
| Ceftriaxone | Check severe beta-lactam allergy; weight-based dose; use neonatal protocol in infants. | Allergy, injection pain, diarrhoea, biliary effects; observe after injection. |
| Fluconazole | Avoid oral use in pregnancy unless specialist; check liver disease and QT drugs. | Hepatotoxicity, QT prolongation, interactions with warfarin and some antiretrovirals. |
| Fluoroquinolones | Do not use empirically for gonorrhoea; avoid pregnancy, tendon disease, significant QT risk where possible. | Tendon rupture, neuropathy, dysglycaemia, CNS effects; separate cations. |
| NSAIDs | Avoid in renal failure, active ulcer, severe asthma reaction, anticoagulation or late pregnancy. | GI bleeding, renal injury, fluid retention and bronchospasm. |
11. Follow-up and failure pathway
- Review test results and clinical response; telephone follow-up can reduce loss to care when confidential.
- At 48–72 hours for PID/epididymitis, confirm improvement. No improvement means admission/referral, adherence/re-exposure review, culture/NAAT and alternative diagnosis.
- Persistent cervicitis/proctitis: test for M. genitalium, trichomonas, HSV, resistant gonorrhoea, inflammatory bowel disease and malignancy as indicated.
- Recheck pregnancy, HIV and syphilis window periods; repeat tests after recent exposures.
- Document outcome, partner treatment, prevention interventions and adverse events.
12. Nursing and patient-education checklist
- Protect privacy, assess pain and fever, and explain every examination step.
- Administer antibiotics correctly, observe for allergy, record dose/route/time and check pregnancy/allergy status.
- Teach completion of therapy, alcohol avoidance with metronidazole, doxycycline precautions, analgesic use and return warnings.
- Provide condoms, counselling, partner-notification support, HIV testing and referral for PrEP/PEP, vaccination and safeguarding.
- Use teach-back: ask the patient to repeat the dosing schedule, abstinence interval and danger signs.
13. Worked cases
Case 1: discharge plus pelvic pain
A febrile sexually active woman has lower-abdominal pain and cervical-motion tenderness. Exclude ectopic pregnancy, obtain NAAT and cultures, start broad PID therapy immediately, review within 72 hours and admit if she is pregnant, septic, vomiting or has an abscess.
Case 2: painful scrotal swelling
A 19-year-old with sudden severe unilateral pain and vomiting is treated as torsion until proven otherwise. Surgical review comes before STI testing; antibiotics are added only after the emergency pathway is addressed.
Case 3: anal pain and discharge
A patient with receptive anal exposure has tenesmus and rectal discharge. Collect rectal NAAT for gonorrhoea/chlamydia, HSV and syphilis testing, treat proctitis empirically when indicated, consider 21-day doxycycline for LGV features and review for abscess or IBD.
14. Quick self-test
- List the five steps of syndromic STI case management.
- Name three non-STI causes of vaginal discharge.
- What minimum pelvic findings justify empiric PID treatment when no better diagnosis exists?
- Which emergency must be excluded in acute unilateral scrotal pain?
- Why is a negative urine NAAT insufficient after receptive anal intercourse?
Answers
- History/examination; syndrome diagnosis/treatment; education/counselling; partner management; recording/reporting.
- Physiological discharge, BV, candidiasis, irritant dermatitis, foreign body or malignancy.
- Pelvic/lower-abdominal pain plus cervical-motion, uterine or adnexal tenderness.
- Testicular torsion.
- Urine samples may miss infection confined to the rectum or pharynx; test the exposed anatomical site.
Further study and source material
- Slideshare: Syndromic approach (five-step method, flowcharts and follow-up).
- WHO Guidelines for symptomatic STIs.
- CDC PID guidance.
- CDC epididymitis guidance.
- Uganda Clinical Guidelines 2023 — confirm national regimens.
Take-home: Syndromic care is a structured first-contact safety net, not a shortcut. Stabilise first, rule out surgical emergencies, test exposed sites, treat likely pathogens promptly, counsel and manage partners, and escalate any non-response or red flag.
