Internal Medicine Conditions

Ischemic Heart Disease


Cardiac Insufficiency


Bronchial Asthma


Hepatitis and Liver Cirrhosis




Peptic and Intestinal Ulcer Disease


Hormonal Imbalances (some etiologies)

Post-surgical Complications

Varicose Veins



Bone Fractures

Mastitis and Lactostasis

Hemorrhoids and Anal Fissures


Non-healing Vascular Wounds

Traumatic Hematomas

Chronic Arterial InInflammatory Skin Conditions (furuncles, carbuncles, abscesses)sufficiency

Facial Neuralgia

Migraines and Headaches

Trigeminal Neuralgia

Strokes (both Ischemic and Hemorrhagic)

Fallopian Tube Scarring

Infertility (some etiologies)

Non-malignant masses



Ovarian Cysts

Erectile Dysfunction

Kidney Disease (various etiology)


Interstitial Cystitis

Pelvic pain



Chronic Sinusitis

Otitis (Acute and Chronic)

Back and Neck pain

Skin Rejuvenation



Rheumatoid Arthritis

Joint Pains (multiple etiologies)

Ischemic Limb Pain

Painful Peripheral Neuropathy

Migraines and Headaches

Chronic Pancreatitis

Hair Restoration

Skin Rejuvenation

Hirudotherapy can be applied to assist in treatment of probably 80-90% of conditions related to internal organs. The goal of leech therapy is to deliver the medicinal components of the leech saliva to open up new vascular beds and start the body’s natural process of self-healing the organs by re-storing their original function and increasing organ reserves. 

The examples of internal medicine leech application would be treatment of heart disease by re-opening clogged blood vessels; treatment of diabetes by improving  pancreatic insufficiency; treatment of liver cirrhosis by lysing the scarring of the liver and promoting natural organ’s ability to regenerate; treatment of chronic kidney disease by restoring some of the kidney’s function; treatment of lung pathology by clearing smoking debris and re-vascularizing the lung tissues thus improving oxygen exchange. 

Hirudotherapy has shown the ability to improve autoimmune disorders such as lupus, rheumatoid arthritis, and many allergic conditions by modulating the autoimmune response. At the same time, leeches can be also used to boost the natural immune response to lessen frequency and severity of common infectious bacterial, viral, and fungal infections.

Multiple endocrine glands dysfunction can also be addressed with hirudotherapy. Partial restoration of pituitary, thyroid gland, pancreatic, adrenal function has been documented. Treatment of both male and female sexual and reproductive dysfunction related to endocrine gland dysfunction is also treatable with leeches.

Innovative approach
to modern medicine

From osteoarthritis to skin grafts, hirudotherapy has demonstrated its therapeutic potential, providing a unique and innovative approach to modern medicine that draws on the ancient wisdom of traditional healing practices.

FDA Approved

This treatment has received the seal of approval from the U.S Food and Drug Administration, which classifies leech as a medical device, while in Canada it is deemed a medication.

Powerful Punch

The Hirudo medicinalis leech may be a small creature, but its medicinal properties pack a powerful punch, representing an exciting frontier for medical research and practice alike.


To understand the therapeutic effect of the medicinal leech application one must understand the ways in which this medical intervention functions. Unfortunately, the misconception of the public and medical community is that leeches just “suck your blood.” One must appreciate that the relationship between the human and the leech is symbiotic. There are tremendous benefits to both species. It is true that for the leech, human (and other animal’s) blood is essentially its food. The benefits to humans can be categorized as mechanical and chemical.

Mechanical Benefits

It is a common misconception that leeches remove only blood from their prey. Although mechanical bleeding has multiple benefits that include stimulation of new blood production, removal of the stale blood that has difficulty returning to the general blood circulation, the benefit that is overlooked is that the leech removes the fluid in between the cells: interstitial fluid. This “cleans up” the space between the cells from cellular toxins and debris that are produced by each of our cells during normal metabolism

One of the components of leech saliva that will be described below is able to lice the scarring and adhesions as well as bust the blood clots thus freeing up the normal return of interstitial fluid back into the lymphatic system. This allows the micro vessels to re-open and deliver fresh blood with oxygen and nutrients to the human tissues and vital organs. This improves overall blood circulation that aids in wound and organ healing.

Chemical Benefits

The main therapeutic effect comes from leech saliva that has multiple individual components that are described below. The leech injects this incredible “medication” usually during the first 20 minutes of the treatment. Approximately 70% of the injected saliva will act locally at the organ or the part of the body that is being targeted, and 30% of the saliva will enter the general circulation and will act systemically. Here are some of the most studied components of the leech saliva with its medicinal benefits:

  • Hirudin - Inhibits blood coagulation Hirudin contains valuable amino acids:glutamine - strengthens the immune system, especially during physical trainingcystine - participates in cell regeneration, has an antimicrobial effectlysine - improves the absorption of calcium and stabilizes the mental stateglycine - regulates metabolism, reduces mental stressserine - it is a component of brain cells, responsible for the synthesis of important amino acids
  • Calin (saratin) - inhibits blood coagulation
  • Destabilase - dissolves blood clots and improves the transport of nutrients to cell membranes. It has a positive effect on the organs of vision, so treatment with leeches is used for cataracts.
  • Hirustatin (serine proteinase) - immune system modulator
  • Bdellins - anti-inflammatory
  • Eglins - anti-inflammatory
  • Anesthetic substance - anesthetic 
  • Orgelase - Leeches, like many annelids, have a well-developed ability to regenerate (restore) their body. After the session, the vessels and tissues of the patient acquire a similar property for a while. As a result, blood circulation is restored, defects in the walls of blood vessels heal. It enhances the synthesis of new capillaries.
  • Collagenase - Accelerates the healing of wounds, dissolves scars, reduces the appearance of cellulite.
  • Lipase - breaks down fat and cholesterol, therefore, promotes weight loss and improves the condition of atherosclerosis.
"Before I discovered hirudotherapy, I struggled with the pain and discomfort of varicose veins for years. After just a few sessions at Leech Medicine, I noticed a significant reduction in swelling and discomfort. The staff was knowledgeable and made me feel comfortable throughout the entire process. I highly recommend their services to anyone seeking a natural solution for varicose veins!"
"I suffered from chronic migraines for years, and nothing seemed to work until I discovered hirudotherapy at Leech Medicine. After a few sessions, my migraines have become less frequent and less severe, allowing me to enjoy my life without constant interruptions. The team at Leech Medicine is compassionate, knowledgeable, and dedicated to helping their patients find relief through this unique, natural therapy."

Before your hirudotherapy treatment, we recommend the following:

Avoid alcohol and drugs for at least 24 hours prior to your treatment

Eat a light meal and drink plenty of water to stay hydrated

Wear comfortable, loose-fitting clothing that allows easy access to the treatment area

Bring any necessary medical records or information with you to your appointment

During your hirudotherapy treatment, our experienced practitioners will guide you through the process and ensure that you are comfortable throughout the treatment.

Before your hirudotherapy treatment, we recommend the following:

Avoid alcohol, drugs, and strenuous activity for at least 24 hours after your treatment

Keep the treatment site clean and dry

Avoid touching the treatment site

Monitor the site for any signs of infection or adverse reactions

Follow up with your primary medical team of practitioners as needed

before & after care

Instructions to help you prepare for your        treatment

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