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■ The progression of diabetes can cause numerous problems. These problems can lead to vessel diseases that limit or prevent blood from reaching the toes, fingers, hands, and feet. When blood flow becomes severely restricted, the affected tissue can die. This is the leading cause of amputation among people with diabetes. Losing a digit or limb due to complications from diabetes is a major concern for millions of people worldwide.

■ The most effective way to stop this process is to increase circulation to the affected tissues without the risk of blood clots. ResearchTrusted Source has shown that leech therapy can play a role.

■ The Hirudin substance in leech saliva thins the blood and keeps it from clotting. Since people with diabetes tend to have thicker blood, Hirudin can help relieve the pressure on the heart and cardiovascular system by thinning the blood. Researchers have observedTrusted Source positive outcomes in cases where Hirudin has been used for treat diabetes.