Inability to control urination and defecation after cerebral infarction may be caused by the fact that the patient is in coma after cerebral infarction, or it may be caused by the fact that the site of cerebral infarction is the cerebral cortex or corticospinal conduction tracts controlling the reflexes of urination and defecation. 1. Coma: if the patient is in a state of consciousness after cerebral infarction, the cerebral cortex can not inhibit the urination and defecation centers in the spinal cord, which may lead to the symptom that the patient can not control the urination and defecation, and this symptom can be improved after the patient’s consciousness is restored. 2. The site of cerebral infarction is special: the paracentral lobule area is the cerebral cortex that controls urination and defecation. In addition, the urination and defecation centers from the paracentral lobule to the spinal cord have to pass through the corticospinal tracts, which are distributed in the basal ganglia, the internal capsule, the corona radiata, the thalamus, the brainstem and other parts of the body, and infarctions in these parts of the body will also lead to the brain’s loss of inhibition of the spinal cord, which in turn will lead to urinary and fecal incontinence. If you are unable to control your bowel movements, you should consult your physician to find out the cause of your incontinence and follow the doctor’s instructions.