Despite breakthroughs in care and treatment, the consequences of a subarachnoid hemorrhage (SAH) are still associated with morbidity and mortality. Early brain injury is still a major source of clinical deterioration in people with SAH. When a patient suffers a SAH, they are more likely to develop long-term neurological problems, which can be life-threatening. According to recent research, the management and remission of SAH are dependent on inflammatory mechanisms. The development of problems after SAH has recently been linked to inflammation. Many investigations have failed to show how inflammatory mechanisms affect SAH patients’ prognosis and outcome. SAH procedures and management will be improved by better understanding the various inflammatory pathways that occur after SAH. It was the goal of this review to outline some of the most important inflammatory pathways that emerge after SAH and to provide a general understanding of SAH.