Fears & Phobias: Beginning with 'i'
Iatrophobia: Fear of going to the doctor or of doctors.
Ichthyophobia: Fear of fish.
Ideophobia: Fear of ideas.
Illyngophobia: Fear of vertigo or feeling dizzy when looking down.
Insectophobia: Fear of insects.
Iophobia: Fear of poison.
Isolophobia: Fear of solitude, being alone.
Isopterophobia: Fear of termites, insects that eat wood.
Ithyphallophobia: Fear of seeing, thinking about or having an erect penis.