Meningitis is an inflammation of the meninges, the protective membranes covering the brain and spinal cord. It can be caused by bacterial, viral, or fungal infections. Bacterial meningitis is the most severe form and requires immediate medical treatment with antibiotics to prevent permanent brain damage or death. Nursing care involves frequent assessment of neurological status, managing fever and pain, maintaining fluid balance, and promoting mobility once the infection resolves. Prompt diagnosis and treatment are important to manage meningitis effectively.