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Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.

Lymphoedema

Cardiology · UK scope · Sources checked 27 Aug 2026 · Clinical review pending

RapidFull
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Escalate

Rapid painful swelling, erythema with systemic illness, hypotension/confusion, new breathlessness/chest pain or acute unilateral swelling needs urgent assessment for cellulitis/sepsis, DVT or PE rather than routine lymphoedema treatment.

Synopsis

Diagnose chronic lymphatic swelling, exclude dangerous mimics and use decongestive therapy, skin care and cellulitis prevention safely.

  • Lymphoedema is protein-rich interstitial swelling from impaired lymph transport; it may be primary or secondary to cancer treatment, nodal disease, infection, obesity, trauma or chronic venous disease.
  • Early swelling may pit and improve overnight; later fibrosis, skin thickening and papillomatosis make it firm and non-pitting.
  • A positive Stemmer sign supports lymphoedema, but a negative sign does not exclude it.
  • New unilateral swelling still requires DVT, malignancy/recurrence and infection assessment before being labelled lymphoedema.
  • NHS decongestive lymphatic therapy has four components: compression, skin care, exercise and specialised manual lymphatic drainage.
  • After volume reduction, maintenance depends on correctly fitted garments, self-massage when taught, exercise, weight management and meticulous skin care.
  • Diuretics are not routine treatment for isolated lymphoedema because they remove water without correcting lymphatic protein clearance; use only for a separate indication.
  • Cellulitis can worsen lymphatic damage: treat promptly, pause painful compression briefly, then restart as soon as tolerable and address portals such as tinea or fissures.

Key red flags

Cellulitis

New warmth, tenderness, erythema/blotchy rash, rapid swelling, fever or flu-like symptoms; systemic toxicity requires emergency care.

DVT or recurrent malignancy mimic

Sudden unilateral swelling, venous distension, pain, new nodes, weight loss or progression after cancer treatment requires urgent vascular/oncology reassessment.

Investigation priorities

01
Structured limb examination and volume/circumference measurementsFirst step

Confirm distribution, stage severity and provide a reproducible baseline.

Management branches

new swellingFirst assessment

Persistent limb or midline swelling suggestive of lymphatic failure.

  1. First: establish onset, cancer/nodal treatment, infection, travel, drugs, venous history and cardiac/renal/liver symptoms; examine both limbs and nodes.
  2. Next: urgently exclude DVT, cellulitis and malignant/central obstruction when clinical features suggest them.
  3. Next: document limb measurements and skin condition; assess arterial supply before substantial lower-limb compression when indicated.
  4. Escalation: refer to a specialist lymphoedema service for diagnosis, garment prescription and a personalised decongestive plan.
maintenanceLong-term self-management

Volume reduced or stable chronic lymphoedema.

  1. First: wear correctly fitted compression garments as prescribed and replace/re-measure when worn, loose or limb size changes.
  2. Next: continue skin care, exercise/calf or arm pump activity, weight management and taught self-massage.
  3. Next: recognise cellulitis early and seek prompt antibiotics; address recurrent portals and consider specialist prophylaxis after repeated episodes.
  4. Escalation: re-refer for rapid growth, loss of garment fit, recurrent

Key medicines

Flucloxacillin500 mg–1 g orally every 6 hours for 14 days for uncomplicated cellulitis in established lymphoedema.1 g four times daily is off-label; check true penicillin allergy and liver history. Deterioration at any time or no response by 48 hours needs escalation; generic NICE cellulitis courses are shorter, but BLS specifically advises 14 days in lymphoedema.
Clarithromycin500 mg orally twice daily for 14 days.Review QT prolongation and CYP3A interactions, especially statins; erythromycin is preferred if a macrolide is needed in pregnancy.
Open full textbook →Answer 2 questionsCardiology check
Sources and review status5 sources · checked 27 Aug 2026 · clinical review pending+
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Typical adult dose examples remain subject to patient factors, contraindications and the live BNF or specialist protocol. Source check completed 27 Aug 2026; clinical approval remains outstanding.

  • NHS: Lymphoedema treatmentDecongestive lymphatic therapy and maintenance.
  • British Lymphology Society: Cellulitis in lymphoedema (2025)Lymphoedema-specific antibiotic choice, dose, duration and recurrence prevention.
  • NICE NG141: Cellulitis and erysipelasGeneric cellulitis severity, referral and antimicrobial safety context.
  • NICE NG158: Venous thromboembolic diseasesDVT exclusion for acute unilateral swelling.
  • NICE CKS: Compression stockingsArterial assessment and compression safety.

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes

Authoring stateRapid draftClinical stateAwaiting reviewJurisdictionUnited Kingdom
cellulitis
, wounds, pain or functional decline.