Aichmophobia is a kind of specific phobia

Specific phobia

A specific phobia is a generic term for any kind of anxiety disorder that amounts to an unreasonable or irrational fear related to exposure to specific objects or situations...

, the morbid fear of sharp things, such as pencils, needles, knives, a pointing finger, or even the sharp end of an umbrella. It is derived from the Greek

Greek language

Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

 aichmē (point) and phobos (fear).

Sometimes this general term is used to refer to what is more specifically called trypanophobia

Trypanophobia

Trypanophobia is the extreme fear of medical procedures involving injections or hypodermic needles. It is occasionally referred to as aichmophobia, belonephobia,...

. Trypanophobia is the extreme and irrational fear of medical procedures involving injection

Injection (medicine)

An injection is an infusion method of putting fluid into the body, usually with a hollow needle and a syringe which is pierced through the skin to a sufficient depth for the material to be forced into the body...

s or hypodermic needle

Hypodermic needle

A hypodermic needle is a hollow needle commonly used with a syringe to inject substances into the body or extract fluids from it...

s.