Conflict arises in workplaces due to differences in opinions, values, and approaches between individuals and groups. There are various types of conflicts including intrapersonal, interpersonal, functional, and intergroup. Conflict can have both positive effects such as improving problem solving and group cohesion, as well as negative effects like reduced productivity and delays. Managers should address conflict through open communication, listening, asking questions, asserting positions respectfully, negotiating, problem solving, and managing emotions to resolve issues in a healthy way.