A dry mouth, also known as xerostomia, occurs when the salivary glands produce little or no saliva. During pregnancy, dry mouth is typically caused by hormonal changes, though other factors, such as dehydration, may also contribute to the issue.
Saliva plays a crucial role in maintaining oral health by keeping the mouth clean and aiding in essential functions like chewing and swallowing. Identifying the underlying cause of dry mouth can help in effectively managing symptoms and preventing discomfort.

Is It Normal To Have Dry Mouth During Pregnancy?
Dry mouth is a common occurrence during pregnancy, primarily due to increased levels of estrogen and progesterone. These hormonal changes can impact oral health, leading to symptoms such as dry mouth.
In most cases, dry mouth resolves on its own. However, if the condition persists or is accompanied by other symptoms, seeking medical advice is essential to maintain optimal oral health.
Is Dry Mouth A Symptom Of Early Pregnancy?
Dry mouth can be an early sign of pregnancy, along with symptoms such as morning sickness, fatigue, nausea, and dizziness. Reduced saliva production due to hormonal changes is one of the main reasons for dry mouth during pregnancy.
Many women report experiencing dry mouth during pregnancy, but it often goes unnoticed as it is overshadowed by more prominent symptoms like vomiting and fatigue. While generally not a cause for concern, persistent dry mouth should be addressed to ensure proper hydration and oral health.
When Does Dry Mouth Start in Pregnancy?
Dry mouth during pregnancy can occur at any time, though it is most commonly reported in the first and third trimesters.
According to the American Dental Association (ADA), dry mouth symptoms tend to worsen at night because saliva production reaches its lowest circadian levels during sleep. The condition may also become more noticeable during the day when the body is dehydrated, making it important to recognize the signs of dehydration during pregnancy.
What Causes Dry Mouth in Pregnancy?
1. Dehydration
Staying hydrated during pregnancy is essential for supporting the baby’s development. However, if fluid loss exceeds intake, dehydration can occur. Causes of dehydration during pregnancy include excessive vomiting, profuse sweating, or insufficient fluid consumption. Symptoms of dehydration, along with dry mouth, may include dark yellow urine, fatigue, excessive thirst, and dizziness.
2. Medications
Certain medications, such as antihistamines, decongestants, and antihypertensives, can reduce saliva production, leading to dry mouth. If you are taking any medications, consult your doctor to determine the appropriate fluid intake to prevent dehydration and manage dry mouth symptoms effectively.
3. Increased Blood Volume
During pregnancy, blood plasma volume increases by 45 to 50%, which can cause sodium and water retention in the kidneys, leading to frequent urination. When frequent urination is combined with inadequate water intake, it may contribute to dehydration and dry mouth.
4. Hyperemesis Gravidarum
This condition, characterized by excessive nausea and vomiting, can lead to significant fluid loss, increasing the risk of dehydration and dry mouth.
5. Mouth Breathing
Breathing through the mouth, especially at night or due to gestational rhinitis (nasal congestion), can reduce saliva production and contribute to dry mouth.
How To Treat a Dry Mouth During Pregnancy?
Since dry mouth is often a symptom of an underlying condition, treatment focuses on managing the root cause and providing symptom relief. If certain medications are inducing dry mouth, your healthcare provider may adjust the prescription or suggest alternative treatments.
In some cases, they may recommend artificial saliva products, such as gels, sprays, or lozenges, to boost saliva production and alleviate discomfort. However, certain medications used to treat xerostomia may not be safe during pregnancy. In such situations, home remedies can help manage symptoms effectively.
Home Remedies to Relieve Dry Mouth During Pregnancy
- Sip water frequently to stay hydrated.
- Chew sugar-free gum to stimulate saliva production.
- Suck on sugar-free candy or ice chips to keep your mouth moist.
- Use a cool or warm mist humidifier, especially if you breathe through your mouth at night.
- Avoid alcohol, coffee, sugary drinks, and acidic juices, as they can worsen dry mouth.
- Refrain from consuming tobacco, spicy foods, salty foods, and hard candies, as they may irritate the mouth.
- Keep lips moisturized with lip balm to prevent dryness and cracking.
- Use toothpaste and mouthwash formulated for dry mouth to maintain oral hygiene.
- Brush teeth regularly, preferably after meals and before bedtime, to prevent dental issues associated with dry mouth.
These simple measures can help manage dry mouth during pregnancy while ensuring overall oral health and comfort. If symptoms persist or worsen, consult a healthcare provider for further evaluation and guidance.