15749 Sialadenitis Swollen Salivary Gland

Overview

Sialadenitis is a condition where a salivary gland becomes swollen and painful. Salivary glands are the small organs that make saliva, the fluid that keeps your mouth moist and helps you digest food. When a gland gets infected or blocked, it can swell and cause tenderness in the face or neck.

Sialadenitis is not very common, but it can happen to anyone, especially when the mouth is dry or a gland becomes blocked.

It can affect people of all ages, but older adults, people with a dry mouth, and those with a weakened immune system may be more likely to develop it.

Symptoms

Common symptoms

• Pain or swelling in the face, often near the jaw, cheek, or under the tongue
• Tenderness, redness, or warmth over the swollen area
• A dry mouth or a bad taste in the mouth
• Discomfort when opening the mouth or chewing
• A low fever or general feeling of being unwell

Symptoms in children

• Swelling or redness in the face or neck
• Fussiness or crying when eating or moving the jaw
• A decreased appetite or trouble feeding
• A mild fever

Symptoms in older adults

• Swelling may be less obvious, but pain and tenderness are still present
• Dry mouth may be more noticeable
• A feeling of pressure or fullness in the face
• Sometimes confusion or a fever, if the infection is severe

Causes

Main causes

• Bacterial infection, often from bacteria that normally live in the mouth
• Viral infections such as mumps or flu
• A blocked duct, like a salivary stone, that stops saliva from flowing
• Reduced saliva flow due to dehydration, stress, or certain medicines

Risk factors

• Chronic dry mouth (often caused by medicines or medical conditions)
• Dehydration or not drinking enough fluids
• Poor oral hygiene
• Smoking
• Weakened immune system from illness or treatment
• Sjögren's syndrome, an autoimmune condition that causes dry mouth

When to see a doctor

See a doctor urgently if:

• Seek care the same day if you have a fever, increasing pain, or swelling that does not improve with self-care
• If you have trouble opening your mouth or feel a hard, painful lump that is growing, see a doctor promptly

Book a routine appointment if:

• If the swelling lasts more than a few days without improving, make an appointment with your doctor
• If you have repeated episodes of swollen salivary glands, talk to your doctor about possible underlying causes

Diagnosis

Your doctor will talk to you about your symptoms and feel the swollen area. They may look inside your mouth to check the opening of the salivary duct and see if saliva is flowing properly.

Tests that may be done

• A blood test to check for signs of infection or inflammation
• An ultrasound scan to look for stones or blockages in the salivary duct
• A swab of the affected area to identify the germ causing the infection, if an infection is suspected

What to expect at your appointment

The exam is usually quick and gentle. Your doctor may press lightly on the swollen gland to see if saliva or pus comes out. You may be asked to open and close your mouth. If needed, the doctor will explain the results and discuss the next steps with you.

Treatment

Treatment for sialadenitis depends on the cause. In many cases, simple self-care measures help relieve symptoms. If a bacterial infection is present, your doctor may prescribe antibiotics. For a blocked duct, they may recommend ways to help the stone or blockage pass.

Self-care at home

• Drink plenty of water to stay hydrated and keep saliva flowing
• Apply a warm compress to the swollen area for comfort
• Gently massage the gland in a forward motion to help drain saliva (ask your doctor or nurse to show you how)
• Keep up good oral hygiene by brushing twice a day and cleaning between your teeth
• Rest and take over-the-counter pain relief as advised by your pharmacist or doctor

Medical treatments

Medical treatment may include antibiotics if a bacterial infection is causing the problem, pain relief to manage discomfort, and sometimes a procedure to drain an abscess or remove a salivary stone. Your doctor will choose the approach based on your situation. Always follow their advice and finish any prescribed course of treatment.

When is surgery considered?

Surgery is only needed if a stone cannot pass on its own, an abscess needs to be drained, or the infection keeps coming back. In these rare cases, a specialist (ENT surgeon) may recommend a procedure to remove the stone or open the blocked duct.

Living with this condition

If you have sialadenitis, focus on staying well hydrated and keeping your mouth moist. Sucking on sugar-free sour sweets or chewing gum can help stimulate saliva, but if it causes more pain, stop and ask your doctor for advice. Be gentle with the area and follow your treatment plan.

Lifestyle tips

• Drink water regularly throughout the day, especially in warm weather or during illness
• Keep your mouth clean with regular brushing and flossing
• Avoid smoking and limit alcohol, as these can dry out your mouth
• If you have a dry mouth from medicines, talk to your doctor about ways to manage it

Diet and exercise

Eat soft foods if chewing is painful, and avoid very acidic or spicy foods that may irritate the gland. A balanced diet and regular gentle exercise help your body stay strong, but rest when you feel unwell.

Mental health and emotional wellbeing

Having a swollen and painful gland can be stressful and may affect your sleep or appetite. It's normal to feel worried. Talk to your family, friends, or a healthcare professional about how you feel, and look for ways to relax, such as deep breathing or gentle activities.

Prevention

You can lower your chances of getting sialadenitis by staying hydrated, practicing good oral hygiene, and treating dry mouth early. If you tend to get salivary stones, your doctor or dietitian can give you personalised advice.

Vaccines

Vaccines such as the MMR (measles, mumps, rubella) vaccine help protect against mumps, which is a viral cause of sialadenitis. Make sure you and your family are up to date with recommended immunisations.

Screening programmes

There is no routine screening for sialadenitis, but if you have repeated episodes, your doctor may suggest tests to look for underlying causes.

Complications

If left untreated

• An abscess (a pocket of pus) may form, which can be very painful and need drainage
• The infection can spread to deeper tissues in the neck or face, which is serious
• Repeated episodes may lead to scarring or chronic inflammation of the salivary gland
• A salivary stone may grow larger and completely block the duct, causing severe pain

Long-term outlook

With proper care, most people with sialadenitis recover fully within a week or two. Complications are rare when you seek medical help early. Even if the condition comes back, treatment is usually effective, and your doctor can help you manage it long term.

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