Meningitis is an inflammation of the meninges, the membranes surrounding the brain and spinal cord. There are different types including acute pyogenic and acute arpe meningitis. Symptoms include severe headache, neck stiffness, fever, vomiting, sensitivity to light and sound. Diagnosis involves lumbar puncture to examine cerebrospinal fluid for increased white blood cells, protein levels and decreased glucose. The patient presented with headache and fever and was diagnosed with acute meningitis based on clinical findings and CSF analysis showing lymphocytic pleocytosis. Treatment involved antibiotics, antivirals, analgesics and other supportive medications.