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The nervous system is a complex, highly specialized network. It organizes, explains, and directs interactions between you and the world around you. The nervous system controls:
The nervous system is divided into the brain and spinal cord (central nervous system, or CNS) and the nerve cells that control voluntary and involuntary movements (peripheral nervous system, or PNS).
The symptoms of a nervous system problem depend on which area of the nervous system is involved and what is causing the problem. Nervous system problems may occur slowly and cause a gradual loss of function (degenerative). Or they may occur suddenly and cause life-threatening problems (acute). Symptoms may be mild or severe. Some serious conditions, diseases, and injuries that can cause nervous system problems include:
A sudden (acute) nervous system problem can cause many different symptoms, depending on the area of the nervous system involved. Stroke and transient ischemic attack (TIA) are common examples of acute problems. You may experience the sudden onset of one or more symptoms, such as:
Seizures can also cause sudden changes in consciousness, feeling (sensation), emotion, or thought. Abnormal body movements, such as muscle twitching, may or may not be present. How often the seizures occur and how severe they are depend on the cause of the seizures and the area of the brain involved. For more information, see the topic Seizures.
Diabetes can cause problems with balance, either as a result of peripheral neuropathy or stroke.
Vertigo and dizziness are problems of balance and coordination (equilibrium). Vertigo is often caused by a medicine or a problem of the inner ear or brain. Emotional distress, dehydration, blood pressure problems, and other diseases can all cause feelings of dizziness. For more information, see the topic Dizziness: Lightheadedness and Vertigo.
Most headaches are not caused by serious central nervous system problems. The pain that comes with a headache can range from a throbbing or a piercing pain, such as with a migraine, to severe pain that comes and goes over several days, such as with cluster headaches. Headaches are usually caused by problems with the sinuses, scalp, or muscles of or around the head. For more information, see the topic Headaches.
Check your symptomsto decide if and when you should see a doctor.
Many things can affect how your body responds to a symptom and what kind of care you may need. These include:
You have answered all the questions. Based on your answers, you may be able to take care of this problem at home.
Symptoms of a stroke may include:
Problems with the nervous system can cause a variety of symptoms almost anywhere in the body. A few examples of symptoms that may be caused by a nervous system problem include:
Many prescription and nonprescription medicines can cause symptoms related to the nervous system. A few examples are:
Based on your answers, you may need care right away. The problem is likely to get worse without medical care.
Based on your answers, you may need care soon. The problem probably will not get better without medical care.
Based on your answers, you need emergency care.
Call911or other emergency services now.
Based on your answers, the problem may not improve without medical care.
Specific home treatment for symptoms related to a nervous system problem depends on the cause of the problem. Check your symptoms to determine if and when you need to see your doctor. Keep a diary of your symptoms to review with your doctor at your next appointment. See an example of a diary of symptoms( What is a PDF document? ).
Call your doctor if your symptoms become more frequent or severe during home treatment.
Follow the prevention guidelines below to keep your body and nervous system healthy:
To prepare for your appointment, see the topicMaking the Most of Your Appointment.
You can help your doctor diagnose and treat your condition by being prepared to answer the following questions:
Keep a diary of symptoms( What is a PDF document? ) to review with your doctor at your next appointment.
Current as ofSeptember 23, 2018
Author: Healthwise StaffMedical Review: William H. Blahd Jr. MD, FACEP - Emergency MedicineKathleen Romito MD - Family MedicineAdam Husney MD - Family Medicine
Current as of:
September 23, 2018
Medical Review:William H. Blahd Jr. MD, FACEP - Emergency Medicine & Kathleen Romito MD - Family Medicine & Adam Husney MD - Family Medicine
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