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Tumors And Cancers in Fish



Most cancers and tumors found in fishes have no cure or treatment. Internal tumors or cancers are also not diagnosed until the advanced stages of the disease. And when it is identified early, the position and placement of the tumor often makes it inoperable. This is the main reason most fishes with tumors and cancers are terminated (euthanized).


However, there are some tumors which are treatable. For instance, gill tumor, which is caused by a thyroid problem, can be treated by placing the fish in water medicated with iodine.

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  • Sharks and cancer
    06/02/2012 01:30pm

    It's not true that sharks don't get cancer. That was a story made up by some guy so he could sell make money by selling shark cartilage as a cancer cure. :(

  • 05/17/2014 01:41pm

    No doubt a Japanese guy. They seem to hold many insane beliefs with no scientific proof. And they're not concerned in the least that those irrational beliefs are leading to the extinction of many animals; whales, rhinos, and sharks, just to name a few.

  • Tumors in fish.
    04/07/2016 01:59am

    Sadly I was looking this up because my dinosaur bichir I've had for 5 years developed a tumor and I knew I was too late. He couldn't even swim to the surface to get food, and sadly I didn't want him to go on like this... I had to put him out of his misery. Call me a bad owner but I loved that fish so much I couldn't stand to watch the horror. My cichlids even brought food to him

  • .
    04/07/2016 02:01am

    Every living creature has feelings. Those cichlids were actually friends. Seems weird but they did care.