increased saliva

Saliva, often referred to as spit, is a crucial fluid produced by the salivary glands in the mouth. While it may not receive as much attention as other bodily fluids, saliva plays a vital role in maintaining oral health and aiding in the digestion process. However, there are instances when saliva production increases beyond normal levels, leading to various discomforts and concerns. In this article, we will delve into the phenomenon of increased saliva production, exploring its causes, symptoms, and management strategies.


Understanding Saliva Production

Before delving into the details of increased saliva production, it’s essential to understand the normal process of saliva production and its functions in the body.

Saliva is primarily produced by three pairs of major salivary glands—the parotid glands, submandibular glands, and sublingual glands—along with numerous minor salivary glands located throughout the mouth and throat. These glands work together to produce and secrete saliva into the oral cavity through ducts.

Saliva serves several crucial functions, including:

  1. Lubricating the mouth
  2. Digestion
  3. Dental health
  4. Taste perception


Lubricating the mouth

Saliva keeps the mouth moist, facilitating speech, chewing, and swallowing.


Saliva contains enzymes, such as amylase, which initiate the breakdown of carbohydrates in food.

Dental health

Saliva helps maintain oral hygiene by washing away food particles, buffering acids, and providing minerals that protect tooth enamel.

Taste perception

Saliva plays a role in dissolving food particles, allowing taste receptors on the tongue to detect flavors effectively.

Under normal circumstances, the body regulates saliva production to meet its physiological needs. However, various factors can disrupt this balance, leading to increased saliva production, medically known as hypersalivation or sialorrhea.


Causes of Increased Saliva Production

Increased saliva production can result from a wide range of factors, including physiological, psychological, and pathological triggers. Some common causes include:

  1. Oral Stimuli
  2. Gastroesophageal Reflux Disease (GERD)
  3. Pregnancy
  4. Medications
  5. Infections
  6. Neurological Conditions
  7. Oral Health Issues
  8. Anxiety and Stress


Oral Stimuli

Chewing gum, eating spicy foods, or consuming sour candies can stimulate the salivary glands, leading to temporary increased saliva production.

Gastroesophageal Reflux Disease (GERD)

GERD is a condition characterized by the backflow of stomach acid into the esophagus. Excessive saliva production may occur as a protective mechanism to neutralize the acid and alleviate discomfort.


Hormonal changes during pregnancy can sometimes lead to hypersalivation, commonly known as “pregnancy-induced sialorrhea.” This typically resolves after childbirth.


Certain medications, including some antipsychotics, antidepressants, and drugs used to treat Parkinson’s disease, can cause increased saliva production as a side effect.


Infections of the mouth, throat, or respiratory tract, such as tonsillitis, sinusitis, or strep throat, may trigger heightened saliva production as the body’s immune response.

Neurological Conditions

Neurological disorders such as cerebral palsy, Parkinson’s disease, or stroke can affect the nerves that control swallowing and saliva production, leading to sialorrhea.

Oral Health Issues

Conditions like oral thrush (oral candidiasis), periodontal disease, or poorly fitting dentures can cause irritation in the mouth, prompting increased saliva production.

Anxiety and Stress

Emotional factors such as anxiety, stress, or fear can stimulate the autonomic nervous system, leading to heightened saliva production as part of the “fight or flight” response.


Symptoms of Increased Saliva Production

The symptoms of increased saliva production can vary depending on the underlying cause and individual factors. Some common signs and symptoms include:

  1. Excessive drooling
  2. Difficulty swallowing (dysphagia)
  3. Frequent spitting
  4. Bad breath (halitosis)
  5. Sore throat or hoarseness


Excessive drooling

Persistent drooling beyond infancy or drooling during sleep may indicate increased saliva production.

Difficulty swallowing (dysphagia)

Excess saliva can make swallowing difficult, leading to choking or coughing while eating or drinking.

Frequent spitting

Individuals may find themselves spitting more often than usual due to an overabundance of saliva in the mouth.

Bad breath (halitosis)

Excessive saliva can contribute to the accumulation of bacteria in the mouth, leading to unpleasant breath odor.

Sore throat or hoarseness

Irritation from excessive saliva may result in a sore throat or hoarse voice, especially if accompanied by an underlying infection.


Management and Treatment Options

The management of increased saliva production focuses on addressing the underlying cause while alleviating symptoms and improving quality of life. Treatment strategies may include:

  1. Medications
  2. Botox Injections
  3. Oral Hygiene
  4. Behavioral and Dietary Changes
  5. Speech and Swallowing Therapy



Depending on the cause, healthcare providers may prescribe medications to reduce saliva production. Anticholinergic drugs such as scopolamine or glycopyrrolate are commonly used to decrease saliva secretion by blocking certain nerve signals.

Botox Injections

In cases of severe sialorrhea due to neurological conditions, botulinum toxin injections (Botox) may be administered into the salivary glands to reduce saliva production temporarily.

Oral Hygiene

Maintaining good oral hygiene practices, including regular brushing, flossing, and using mouthwash, can help manage excess saliva and prevent dental issues.

Behavioral and Dietary Changes

Avoiding oral stimuli that trigger saliva production, such as spicy or acidic foods, and practicing relaxation techniques to manage stress and anxiety may help reduce hypersalivation.

Speech and Swallowing Therapy

For individuals experiencing difficulty swallowing due to excess saliva, speech-language pathologists can provide therapy to improve swallowing function and reduce aspiration risk.

It’s important to note that treatment approaches may vary depending on the underlying cause and individual circumstances. Therefore, a comprehensive evaluation by a healthcare professional is essential to determine the most appropriate management plan.



Increased saliva production, or hypersalivation, can be a bothersome symptom associated with various underlying causes, ranging from benign factors like oral stimuli to more serious conditions such as neurological disorders or infections. Understanding the causes, symptoms, and management strategies for hypersalivation is crucial for effective intervention and improving quality of life for affected individuals.

While some cases of increased saliva production may be temporary and resolve on their own, others may require medical intervention and ongoing management. By addressing the underlying cause and implementing appropriate treatment strategies, healthcare providers can help individuals experiencing hypersalivation achieve better symptom control and oral health.

As research continues to advance in the field of salivary gland disorders and related conditions, it is hoped that improved diagnostic tools and treatment options will further enhance the management of increased saliva production, ultimately benefiting individuals affected by this common yet often overlooked issue.

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