Wet cupping involves applying suction with a cup after making small superficial skin incisions. Medicinal leech therapy places purpose-bred medicinal leeches on a selected area. These are different procedures and do not share the same indications.
Limits of the Evidence
Wet cupping has been studied as a complementary approach for some pain complaints, but most studies are low quality and evidence for other diseases is insufficient. The most established use of medicinal leeches is to help relieve venous congestion in tissue after reconstructive surgery. Neither procedure should be presented as a way to “remove toxins,” boost immunity, improve mental performance or treat all diseases.
Safety
Wet cupping may cause scars, burns, infection, prolonged bleeding and, with repeated treatment, anaemia. Leech therapy carries risks of prolonged bleeding, allergy and particularly bacterial infection. Sterile single-use equipment and purpose-bred medicinal leeches are essential. Anaemia, bleeding disorders, active infection, pregnancy and blood-thinning medication require specific assessment; medication must not be stopped without medical advice.
This page provides general information. Treatment must be planned by an authorised physician in a legally authorised healthcare setting.