While we found no scientific term for a person with anger problems, there are several terms that commonly refers to uncontrolled anger problems.
Anger Disorder
Anger Control Problem
Anger Management Problem
There are also some words used to describe someone who is easily annoyed, here are some:
bad-tempered
irritable
moody
touchy
short-tempered
sensitive
temperamental
fractious
hot-tempered
irascible
As explained by PsychGuides.com, a leading cause of anger is a person’s environment. Stress, financial issues, abuse, poor social or familial situations, and overwhelming requirements on your time and energy can all contribute to the formation of anger. As with disorders such as alcoholism, anger issues may be more prevalent in individuals who were raised by parents with the same disorder. Genetics and your body’s ability to deal with certain chemicals and hormones also play a role in how you deal with anger; if your brain doesn’t react normally to serotonin, you might find it more difficult to manage your emotions.
Anger management: Check out 10 tips to tame your temper, shared by Mayo Clinic.