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Mental confusion

Name of Symptom/Sign:
Confusion NOS
ICD-10 R41.0
ICD-O: {{{ICDO}}}
MedlinePlus {{{MedlinePlus}}}
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DiseasesDB {{{DiseasesDB}}}

Mental Confusion or Decreased Alertness is the inability to think clearly and quickly; put simply, feeling things just are not right. When confused, one has difficulty paying attention and may feel dizzy. Confusion interferes with ones ability to make decisions clearly and correctly. Many health problems cause confusion or decreased alertness. It is not unusual for a person who is sick to be sleepy or confused upon awakening. However, extreme sleepiness may be a symptom of a more serious health problem. Decreased alertness may occur when a person is not fully awake, aware of, or able to respond normally to his or her external environment. Decreased alertness may also indicate that a chronic illnesshas gotten worse.


  • 1 Causes
  • 2 Symptoms
  • 3 Cures
  • 4 Sources


  • Intoxication
  • Low blood sugar
  • Head traumaor head injury
  • Concussion
  • Lack of fluid(dehydration)
  • Electrolyteimbalance
  • Nutritionaldeficiency
  • Fever
  • Sudden drop in body temperature(hypothermia)
  • Low level of oxygen
  • Medications
  • Infections
  • Brain tumor
  • Illness
  • Lack of sleep
  • Seizure


Confusion may range from mild to severe. Symptoms of confusion may include:

  • Jumbled or disorganized thoughts
  • Unusual, bizarre, or aggressivebehavior
  • Difficulty solving problems
  • Difficulty performing tasks that used to be simple for the person
  • Inability to identify whereabouts or recognize family members or familiar objects
  • Illusions
  • Hallucinations
  • Paranoia


Although it is not an actual cure, time, a walk in the park, or meditation can alleviate the symptoms of confusion. However, methods of curing more serious episodes of confusion must be determined by a doctor.


  • Yahoo! Health
  • National Library of Medicine - National Institutes of Health

This article is licensed under the GNU Free Documentation License.
It uses material from the http://en.wikipedia.org/wiki/Mental+confusion Wikipedia article Mental confusion.

  All text is available under the terms of the GNU Free Documentation License