An insertion tool is disclosed, which includes a urethral insertion portion of a longitudinal shape configured to be inserted into a urethra, and a vaginal insertion portion of a longitudinal shape configured to be inserted into a vagina. A distal end portion of the vaginal insertion portion is inclined with respect to the urethral insertion portion in a direction in which the distal end portion of the vaginal insertion portion is spaced away from the urethral insertion portion.