American Society of Hirudotherapy

Smart Library

Faceted search across all 5 registries. Filter by registry type, evidence level, or safety domain.

Curated knowledge libraryReference collection

Conditions

11

Venous Leg Ulcer

Tier B

Off-label adjunct to compression therapy with case-series evidence for accelerated healing in compression-resistant venous ulcers.

Studied off-labelCohort / case series

Post-Thrombotic Syndrome

Tier B

Off-label use with case-series evidence for symptomatic relief of leg pain, heaviness, and ulceration in PTS following deep vein thrombosis.

Studied off-labelCohort / case series

Migraine

Tier C

Investigational use with case-series evidence for reduction of migraine frequency and intensity; mechanism plausible via reduction of cervico-cranial venous congestion.

InvestigationalCohort / case series

Essential Hypertension (Adjunctive)

Tier C

Investigational adjunctive use; mechanism includes mild diuresis from blood-volume removal and hirudin-mediated vascular endothelial effects. Not a substitute for pharmacotherapy.

InvestigationalCohort / case series

Varicose Veins (Symptomatic Tributaries)

Tier C

Investigational use for symptomatic relief of varicose tributary discomfort and inflammation; does not eliminate underlying venous reflux.

InvestigationalCohort / case series

Lactational Mastitis (Non-Suppurative)

Tier C

Investigational adjunctive use for non-suppurative lactational mastitis; case-series evidence for resolution of induration and reduced antibiotic days.

InvestigationalCohort / case series

Sciatica (Non-Discogenic / Piriformis)

Tier C

Investigational use for non-discogenic sciatica including piriformis syndrome; case-series evidence for pain reduction.

InvestigationalCohort / case series

Keloid and Hypertrophic Scarring

Tier C

Investigational use for stable keloid and hypertrophic scars; case-series evidence for softening and flattening.

InvestigationalCohort / case series

Post-Mastectomy Lymphedema

Tier C

Investigational adjunctive use following breast cancer treatment with axillary node dissection; case-series evidence for arm volume reduction.

InvestigationalCohort / case series

Carpal Tunnel Syndrome (Mild-Moderate)

Tier C

Investigational use for mild-to-moderate carpal tunnel syndrome; small RCT evidence suggests short-term symptom relief comparable to wrist splinting.

InvestigationalCohort / case series

Vestibular Migraine (Investigational Adjunct)

Tier C

Investigational adjunct for refractory vestibular migraine; migraine prophylaxis (propranolol, topiramate, amitriptyline) and vestibular rehabilitation remain primary.

InvestigationalCohort / case series

This website provides educational information and does not constitute medical advice, diagnosis, or treatment recommendations. Medicinal leech therapy carries clinically meaningful risks and should be performed only by qualified clinicians under institutionally approved protocols. FDA 510(k) clearance for medicinal leeches is limited to specific indications; investigational and off-label discussions are labeled accordingly. For patient-specific guidance, consult a qualified healthcare provider.

Smart Library — Faceted Search Across All Registries | ASH | American Society of Hirudotherapy