The following are the three situational factors that lead to aggression.

Learning: Human beings take to aggression due to learning rather than as an inborn tendency.People exhibit aggression because they found it rewarding. For example, hostile aggression allows the aggressive person to get what s/he wants.

Availability of weapons of aggression: It has been found that observing violence leads to a greater aggression. The proximity of weapons of aggression and their immediate availability increase the likelihood of aggression on part of people.

Personality factors: People with low self-esteem and insecurity behave in an aggressive manner to boost their ego. Similarly, people with a high self-esteem behave aggressively and find it as away to look down upon others.