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ADHD: Other Conditions With Similar Symptoms - Topic Overview

Finding out exactly what is causing behavioral problems can be difficult, since symptoms of attention deficit hyperactivity disorder (ADHD) may also be caused by other problems. The main symptoms of ADHD—inattention, hyperactivity, and impulsiveness—may also result from:

  • Giftedness. Some gifted children will show signs of inattention in class. Often they are not challenged and are bored. So they lose interest in normal class activities. (It is also possible for a child to be both gifted and have ADHD.)
  • Undernutrition. Without proper nutrients, especially in the first year of life, a child is at risk of not developing normally. This includes compromised brain development and function.
  • Abuse or neglect. Emotional problems that often result from abusive conditions can cause a child to have behavior difficulties.
  • Stressful home environment. Temporary or permanent family or household situations, such as divorce or a death of a loved one, may cause a child to act differently than normal. Children can become confused and frightened when there are major changes in their lives.
  • Parenting skills. Sometimes parents do not know how to effectively handle challenging—but normal—behavior in a child. If parents are inconsistent or unsure of themselves, their child may develop behavior problems.
  • Alcohol or drug abuse (most common in teens and adults). It is important to screen for alcohol or drug problems, especially in adults, when evaluating behavior problems.
  • Other medical conditions. Some other medical conditions have symptoms similar to ADHD. These conditions can be the primary cause of symptoms, but can also occur along with ADHD (coexist). Children with ADHD often have at least one other condition along with ADHD, such as:

In order to best treat symptoms of ADHD, a doctor must carefully investigate these other possibilities as a contributor to or cause of behavior problems.

Recommended Related to ADD-ADHD - Pediatric

ADHD: It Can Run in the Family

Rick Webster's son, Richy, stood out at school -- but not necessarily in a good way. He wasn't doing his homework, he was having combative interactions with teachers, and his grades were suffering as a result. While his classmates had trouble once in a while, Richy's difficulties were constant. Rick and his wife tried to get their 14-year-old son to focus on his studies, but the more they pushed, the more his behavior spiraled out of control. The yelling, a steady stream of calls from the school,...

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When symptoms are primarily a result of ADHD, they develop early in life (before the age of 7) and get worse when school demands are placed on the child. Symptoms of ADHD can be expected to continue into adulthood.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: March 12, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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