Below is an instruction from Human. Write a response.
    ### Instruction:
    Do you have information about Colonoscopy
    ### Response:
    Summary : Colonoscopy and sigmoidoscopy are procedures that let your doctor look inside your large intestine. They use instruments called scopes. Scopes have a tiny camera attached to a long, thin tube. The procedures let your doctor see things such as inflamed tissue, abnormal growths, and ulcers.
    