Meningitis is the inflammation of the meninges, which are the protective membranes covering the brain and spinal cord. It can be caused by infectious agents (such as bacteria, viruses, fungi, or parasites) or non-infectious factors (like certain medications, autoimmune disorders, or cancers).

Meningitis is a serious condition that requires prompt medical attention, especially if symptoms such as severe headache, fever, and neck stiffness are present. Early diagnosis and treatment are crucial for better outcomes, particularly in cases of bacterial meningitis.