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Aug 27, 2020  Leech (Jimmy) is a mutant who has the ability to nullify the powers of other mutants when they come near him. Leech played a pivotal role as the source of a 'cure' for the mutant gene. Magneto planned to kill Jimmy, who was being kept at Alcatraz Island, thus destroying the cure and preserving the mutant species. Magneto and his Brotherhood of Mutants attacked the facility, which was defended. Leech.Ninja is here to help you to download premium hosted files We're launching Leech.Ninja premium download link generation service. Leech.Ninja is powered by PremiumLeech engine.

Feb 25, 2019  The sun was a leech that sucked the moisture from our flesh.' (Scott O'Dell, The King's Fifth. Houghton Mifflin, 1966) 'She called him a leech, said he's always sponging off the rest of us.' (Swati Kaushal, A Girl Like Me. Penguin, 2008) Idiom Alerts.

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Related to Leeches: Medicinal leeches
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Leeches are bloodsucking worms with segmented bodies. They belong to the same large classification of worms as earthworms and certain oceanic worms.
Leeches can primarily be found in freshwater lakes, ponds, or rivers. They range in size from 0.2 in (5 mm) to nearly 18 in (45 cm) and have two characteristic suckers located at either end of their bodies. Leeches consume the blood of a wide variety of animal hosts, ranging from fish to humans. To feed, a leech first attaches itself to the host using the suckers. One of these suckers surrounds the leech's mouth, which contains three sets of jaws that bite into the host's flesh, making a Y-shaped incision. As the leech begins to feed, its saliva releases chemicals that dilate blood vessels, thin the blood, and deaden the pain of the bite. Because of the saliva's effects, a person bitten by a leech may not even be aware of it until afterwards, when he or she sees the incision and the trickle of blood that is difficult to stop.
For centuries, leeches were a common tool of doctors, who believed that many diseases were the result of 'imbalances' in the body that could be stabilized by releasing blood. For example, leeches were sometimes attached to veins in the temples to treat headaches. Advances in medical knowledge led doctors to abandon bloodletting and the use of leeches in the mid-nineteenth century. In recent years, however, doctors have found a new purpose for leeches—helping to restore blood circulation to grafted or severely injured tissue.


There are many occasions in medicine, mostly in surgery and trauma care, when blood accumulates and causes trouble. Leeches can be used to reduce the swelling of any tissue that is holding too much blood. This problem is most likely to occur in two situations:
  • Trauma. Large blood clots resulting from trauma can threaten tissue survival by their size and pressure. Blood clots can also obstruct the patient's airway.
  • Surgical procedures involving reattachment of severed body parts or tissue reconstruction following burns. In these situations it is difficult for the surgeon to make a route for blood to leave the affected part and return to the circulation. The hardest part of reattaching severed extremities like fingers, toes and ears is to reconnect the tiny veins. If the veins are not reconnected, blood will accumulate in the injured area. A similar situation occurs when plastic surgeons move large flaps of skin to replace skin lost to burns, trauma or radical surgery. The skin flaps often drain blood poorly, get congested, and begin to die. Leeches have come to the rescue in both situations.


It is important to use only leeches that have been raised in the laboratory under sterile conditions in order to protect patients from infection. Therapeutic leeches belong to one of two species—Hirudo michaelseni or Hirudo medicinalis.


One or more leeches are applied to the swollen area, depending on the size of the graft or injury, and left on for several hours. The benefits of the treatment lie not in the amount of blood that the leeches ingest, but in the anti-bloodclotting (anticoagulant) enzymes in the saliva that allow blood to flow from the bite for up to six hours after the animal is detached, effectively draining away blood that could otherwise accumulate and cause tissue death. Leech saliva has been described as a better anticoagulant than many currently available to treat strokes and heart attacks. Active investigation of the chemicals in leech saliva is currently under way, and one anticoagulant drug, hirudin, is derived from the tissues of Hirudo medicinalis.


The leeches are removed by pulling them off or by loosening their grip with cocaine, heat, or acid. The used leeches are then killed by placing them in an alcohol solution and disposed of as a biohazard. Proper care of the patient's sore is important, as is monitoring the rate at which it bleeds after the leech is removed. Any clots that form at the wound site during treatment should be removed to ensure effective blood flow.


Infection is a constant possibility until the sore heals. It is also necessary to monitor the amount of blood that the leeches have removed from the patient, since a drop in red blood cell counts could occur in rare cases of prolonged bleeding.

Key terms

Anemia — A blood disorder marked by low hemoglobin levels in red blood cells, which leads to a deficiency of oxygen in the blood.
Anticoagulant — A chemical or medication that prevents blood from clotting.



Daane, S., et al. 'Clinical Use of Leeches in Reconstructive Surgery.' American Journal of Orthopedics 26, no. 8 (August 1997): 528-532.

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Treasure Room
Devil Room
(page 3, column 5, row 2)
This article is about the item. For the monster, see Leech (Enemy).

Leech is a passive item. Wwise audio.

Effect[editedit source]

  • Upon pickup, spawns a crawling Leech that follows Isaac. If an enemy comes near, the Leech will attack and chase it, doing 1.5 damage per tick or about 3.2 damage per second. If an enemy is killed by the Leech, Isaac will be healed by half a heart.

Notes[editedit source]

  • The Leech's healing effect does not affect characters that do not have red heart containers.
    • Keeper will be healed by The Leech.
  • Enemies that turn into flesh piles and regenerate when killed such as Globins and some dark red champions regenerate quicker than the Leech can kill them. Isaac will gain half a heart each time the enemies collapse, granting an easy way to regenerate all red hearts. This can also open up many powerful synergies with any item that provides a benefit or resource when Isaac takes damage.

Synergies[editedit source]

  • Arcade rooms: The player can let the Leech eat flies from the shell game and use the resulting health to gamble on the Blood Bank.
  • : Leech grows bigger and does double damage. Still only heals for a half heart.
  • : Enemies can be turned into poop at the cost of half a heart, then consumed by the leech to regain health. Utilization of temporary immunity when hit can allow multiple enemies to be turned into poop, resulting in a net gain of health.
  • : The leech still can attack the enemies turned into poop and gain health.
  • : The player can stand still and allow the Leech to clear a room, granting simple clears and easy health.

Leech Lake Band Of Ojibwe

Interactions[editedit source]

  • : No effect on healing.

In-game Footage[editedit source]

Bugs[editedit source]

Bug! Tends to get confused when attacking Maggot like enemies and just moves around in the attacking animation without attacking anything until the Maggot is killed by The Player.
Bug! The Leech will continuously heal player while it's attacking Mama Gurdy.
Bug! With Leech and Extension Cord, when electricity occasionally connects Isaac and the Leech, it will not always fully connect.

Seeds[editedit source]

PC M4X7 V0TK (Treasure room adjacent to spawn)

PC 3SWF QKD4 (treasure room to the right of spawn)

PC RZ0C 67HL (Treasure Room adjacent to spawn)

PS4 G4YR 243A (Treasure room adjacent to spawn)

Vita L1Y9 Y1KN (Treasure room adjacent to spawn)

Vita 2KAD 2W2B (Treasure room adjacent to spawn)

Download sidify for free. 3DS YG41 04ZN (Treasure room adjacent to spawn)

The Binding of Isaac: Rebirth

Leech Lake

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