Anger is a natural, instinctive response to threats. Some of it is necessary for our survival. It becomes a problem when you have trouble controlling it, causing you to say or do things you regret. When instead of responding to anger, you react to it. Everyone feels angry sometimes. It becomes a problem when it begins to impact a person’s daily life and causes them to react in a way that might hurt themselves or those around them.

Anger can be triggered by stress, jealousy, guilt, embarrassment, miscommunication, frustration, family problems, financial issues… the list is almost endless. When people arent feeling good, they can get angry even at the sight of children playing football. Triggers can change based on situation and moods.

Anger can be a symptom of depression, which is characterized as ongoing feelings of sadness and loss of interest lasting at least two weeks. Obsessive compulsive disorder (OCD) is an anxiety disorder that’s characterized by obsessive thoughts and compulsive behavior. A person with OCD has unwanted, disturbing thoughts, urges, or images that drive them to do something repetitively.
Anger may result from frustration with your inability to prevent obsessive thoughts and compulsive behaviors, or from having someone or something interfere with your ability to carry out a ritual.

Anger can be suppressed or overtly expressed. The intensity and how it’s expressed varies from person to person. If vented properly, it can cause no possible harm be it physically or psychologically. Regular physical activity, Meditation, social outgoing, vacation, weekend gateways, social service,etc could help one remain calm and manage mental health.

There are a number of emotions that go hand in hand with anger. You may notice the following emotional symptoms before, during, or after an episode of an Angerr such as irritability,frustration,anxiety,rage,stress,feeling overwhelmed.guilt, shortness of breath,

Sources:
https://www.healthline.com/health/
https://headspace.org.au/explore-topics