Should You See a Doctor for Drooling While Sleeping? - Family Medicine

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Drooling during sleep?


Hello doctor, I have occasionally drooled while sleeping since I was young, and it happens more frequently when I nap at school.
Should I see a doctor for this? Which specialty should I consult?

Qing, 10~19 year old female. Ask Date: 2020/11/16

Dr. Wu Zongying reply Family Medicine


Hello: Based on the information you provided, possible causes include 1.
increased parasympathetic nervous system activity, 2.
sleeping with the mouth open, and 3.
taking antidepressants or anticonvulsants.
Please try to avoid sleeping on your stomach (for example, during school naps, lying face down on the desk can easily lead to drooling) or sleeping on your side; the best sleeping position is to lie flat on your back.
As one ages, the severity of physiological drooling during sleep generally improves.

Reply Date: 2020/11/16

More Info


Drooling while sleeping, also known as sialorrhea, can be a common occurrence for many individuals, particularly during deep sleep stages. While it may seem like a minor issue, persistent drooling can sometimes indicate underlying health conditions that may warrant medical attention.
In your case, since you have experienced this issue since childhood, it may not be an immediate cause for concern. However, if the drooling has increased in frequency or is accompanied by other symptoms, it would be wise to consult a healthcare professional. The first step would be to visit a primary care physician, who can evaluate your overall health and determine if a referral to a specialist is necessary.

There are several potential causes for drooling during sleep. One common reason is the position in which you sleep. For instance, sleeping on your side may make it easier for saliva to escape the mouth. Additionally, nasal congestion or allergies can lead to mouth breathing during sleep, which can also contribute to drooling. If you have a habit of sleeping with your mouth open, this could exacerbate the issue.

Another consideration is the possibility of sleep disorders. Conditions such as sleep apnea can lead to disrupted sleep patterns and may cause individuals to drool more frequently. If you have experienced symptoms such as loud snoring, gasping for air during sleep, or excessive daytime sleepiness, it may be beneficial to undergo a sleep study to assess your sleep quality and identify any underlying disorders.

Neurological conditions can also play a role in excessive drooling. For example, individuals with Parkinson's disease or other neurological disorders may experience difficulties with muscle control, leading to drooling. If you have any concerns about neurological symptoms, such as tremors, stiffness, or changes in coordination, it is crucial to discuss these with your doctor.

In terms of treatment, if your drooling is determined to be related to a specific condition, addressing that underlying issue may help alleviate the problem. For instance, if nasal congestion is a contributing factor, treating allergies or using nasal decongestants may reduce drooling. In some cases, medications that reduce saliva production may be prescribed, but this would depend on the severity of the issue and the underlying cause.

In summary, while occasional drooling during sleep is generally not a cause for alarm, persistent or worsening symptoms should be evaluated by a healthcare professional. Start with a visit to your primary care physician, who can assess your situation and guide you on the appropriate next steps. If necessary, they may refer you to a sleep specialist or a neurologist for further evaluation. Remember, addressing any concerns early on can help ensure better sleep quality and overall health.

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