MedicineNet.com

About Us | Privacy Policy | Site Map
February 9, 2012

home > alzheimer's center > alzheimer's a-z list > confusion index

Confusion Symptoms

Symptom Checker: Symptoms & Signs Index

Terms related to Confusion:

Inablity to Think Quickly
Loss of Memory
Loss of Orientation
Memory Loss
Mental Confusion
Mental Status Change
Not Thinking Clearly
Unclear Thinking
Blurred Thinking
Cloudy Thoughts
Confused
Disorientation
Disoriented
Fuzzy Thinking
Inability to Think Clearly

Confusion is a change in mental status in which a person is not able to think with his or her usual level of clarity. Frequently, confusion leads to the loss of ability to recognize people and or places, or tell time and the date. Feelings of disorientation are common in confusion, and decision-making ability is impaired.

Confusion may arise suddenly or develop gradually over time. Confusion has multiple causes, including injuries, medical conditions, medications, environmental factors, and substance abuse.

Main Articles on Confusion

(No articles currently available)

Causes of Confusion

Anxiety Anxiety is a feeling of apprehension and fear characterized by physical symptoms. Anxiety disorders are serious medical illnesses...learn more »
Brain Tumor A brain tumor can be either benign (non cancerous) or malignant (cancerous), primary, or secondary. Causes and risk factors...learn more »
Concussion Concussion is a short-lived loss of brain function that is due to head trauma. There are two types of concussion, simple and...learn more »
Dehydration Dehydration is the excessive loss of body water. There are a number of causes of dehydration including heat exposure, prolonged...learn more »
Dementia Dementia is a significant loss of intellectual abilities such as memory capacity, severe enough to interfere with social or...learn more »
Depression Depression is an illness that involves the body, mood, and thoughts and affects the way a person eats and sleeps, the way one...learn more »
Drug Abuse Drug addiction is a chronic disease that causes drug-seeking behavior and drug use despite negative consequences to the user and...learn more »
Head Injury In the United States, head injuries are one of the most common causes of death and disability. Head injuries due to bleeding are...learn more »
Heat Stroke Heat stroke (heatstroke or sun stroke) is a form of hyperthermia. Heat stroke is a true medical emergency that can be fatal if...learn more »
Hypoglycemia Hypoglycemia is a syndrome caused by low blood sugar. Symptoms of hypoglycemia include palpitations, trembling, intense hunger,...learn more »
Hypothyroidism Hypothyroidism is any state in which thyroid hormone production is below normal. Normally, the rate of thyroid hormone...learn more »
Jet Lag Jet lag (desynchonosis) is a temporary disorder that results from travel across time zones. Symptoms include anxiety,...learn more »
Kidney Failure Kidney failure can occur from an acute event or a chronic condition or disease. Prerenal kidney failure is caused by blood loss,...learn more »
Listeria Listeria is a type of bacteria that can cause food poisoning. Listeriosis symptoms include diarrhea, nausea and fever. Pregnant...learn more »
Meningitis Encephalitis is a brain inflammation that causes sudden fever, vomiting, headache, light sensitivity, stiff neck and back,...learn more »
Mental Health Mental health is an optimal way of thinking, relating to others, and feeling. All of the diagnosable mental disorders fall under...learn more »
Postpartum Depression Postpartum depression is a form of depression that occurs within a year after delivery. It is thought that rapid hormone changes...learn more »
Reye's Syndrome Reye's syndrome (RS, or Reye syndrome) is a sudden, sometimes fatal, disease of the brain with degeneration of the liver. Reye...learn more »
Reye's Syndrome
Rocky Mountain Spotted Fever Rocky Mountain spotted fever (RMSF) is an infectious disease that's transmitted by the bite of a tick infected with the...learn more »
Schizophrenia Schizophrenia is a disabling brain disorder that may cause hallucinations and delusions and affect a person's ability to...learn more »
Seizure (Epilepsy) Epilepsy is a brain disorder in which the person has seizures. There are two kinds of seizures, focal and generalized. There are...learn more »
Streptococcal Infections Group A streptococcal infections are caused by group A streptococcus, a bacteria that causes a variety of health problems,...learn more »
Stroke A stroke results from impaired oxygen delivery to brain cells via the bloodstream. A stroke is also referred to as a CVA, or...learn more »
Teen Drug Abuse Drugs commonly abused by teens include tobacco products, marijuana, cold medications, inhalants, depressants, stimulants,...learn more »
Toxic Shock Syndrome Toxic shock syndrome (TSS) is a condition caused by toxins formed by Staphylococcus aureus or group A Streptococcus bacteria....learn more »
Vancomycin-Resistant Enterococci (VRE) Vancomycin-resistant enterococci (VRE) infection is the most common type of infection acquired by patients while hospitalized....learn more »
West Nile Virus West Nile virus (West Nile encephalitis) is a brain infection caused by a virus. People become infected with the virus after...learn more »
Yellow Fever Yellow fever is an infectious disease transmitted by infected mosquitoes. Side effects are rare with the yellow fever vaccine....learn more »