Median saggital plane illustration of a manˇs outline to illustrate the various illnesses that can influence miction. Brain : - Stroke - Alzheimerˇs - Parkinsonˇs - Multiple sclerosis Spinal cord : - Multiple sclerosis - Cervical or lumbar stenosis - Herniated disc - Lesion of the spinal cord - Diabetic neuropathy - Nerve lesion Peripheral nerves : - Diabetic neuropathy - Nerve lesion Urinary system : - Urinary infection - Obstruction - Benign hyperplasia of the prostate - Tumour - Urinary lithiasis