9 doctors weighed in:

My sister says she has narcolepsy. Are family members more likely to get the same thing?

9 doctors weighed in
Dr. Dennis Clifford
Internal Medicine - Pulmonary Critical Care
3 doctors agree

In brief: Yes

Narcolepsy is a genetic abnormality and can occur in multiple family members although many single isolated cases also occur. Symptoms generally begin in adolescence.
There are tests that can be done to see if you have the genetic susceptibility to narcolepsy, but they don't necessarily indicate you have the condition.

In brief: Yes

Narcolepsy is a genetic abnormality and can occur in multiple family members although many single isolated cases also occur. Symptoms generally begin in adolescence.
There are tests that can be done to see if you have the genetic susceptibility to narcolepsy, but they don't necessarily indicate you have the condition.
Dr. Dennis Clifford
Dr. Dennis Clifford
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Dr. Yo-El Ju
Neurology
2 doctors agree

In brief: Yes

Immediate family members of people with true narcolepsy are more likely to have narcolepsy and other disorders of excessive sleepiness.
However, many people with "narcolepsy" are just excessively sleepy, and they should have a thorough evaluation by a sleep specialist.

In brief: Yes

Immediate family members of people with true narcolepsy are more likely to have narcolepsy and other disorders of excessive sleepiness.
However, many people with "narcolepsy" are just excessively sleepy, and they should have a thorough evaluation by a sleep specialist.
Dr. Yo-El Ju
Dr. Yo-El Ju
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Dr. Mark Patterson
Pediatrics
1 doctor agrees

In brief: Possibly

There is a genetic connection with narcolepsy, meaning it can run in families.
However, having the genetic risk alone is not sufficient to cause the condition. Some other unidentified event appears needed to trigger the development of narcolepsy. Has your sister seen a sleep specialist yet? That would be necessary to make the diagnosis.

In brief: Possibly

There is a genetic connection with narcolepsy, meaning it can run in families.
However, having the genetic risk alone is not sufficient to cause the condition. Some other unidentified event appears needed to trigger the development of narcolepsy. Has your sister seen a sleep specialist yet? That would be necessary to make the diagnosis.
Dr. Mark Patterson
Dr. Mark Patterson
Thank
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