1. Eating something hot: palatal burns

This is the most common cause of sudden-onset pain in the roof of the mouth — and one that most people have experienced at some point. The hard palate has relatively thin mucosa with limited blood supply compared to other oral tissues, making it particularly susceptible to burns from hot food and drinks.

Hot pizza, freshly baked bread, hot soup, coffee — all classic culprits. The pain is typically immediate, followed by a lasting soreness over the next day or two. In more significant burns, a blister may form, which then breaks and leaves a raw, tender area.

What to do: Cool water or milk immediately after a burn helps. Soft foods, avoiding anything hot, spicy or acidic while the tissue heals, and giving it a few days. Most minor palatal burns heal within a week without any intervention. If the area blisters significantly, is very painful, or does not improve after ten days, a dental assessment is appropriate.

2. Canker sores (aphthous ulcers) on the palate

Aphthous ulcers are extremely common and a frequent cause of pain on the roof of the mouth. They can occur anywhere in the oral mucosa, including the palate, and are often mistaken for burns or infection by patients who encounter them in an unfamiliar location.

What they look like: Small, round or oval ulcers with a white or yellowish centre and a red border. They are typically very painful relative to their size — minor aphthous ulcers (the most common type, 2–5mm) can cause significant discomfort with eating, drinking and speaking.

Common triggers: Stress and fatigue, minor trauma, hormonal changes, certain foods (citrus, tomatoes, chocolate, nuts), and nutritional deficiencies — particularly iron, vitamin B12, folate and zinc.

Timeline: Simple aphthous ulcers heal within seven to fourteen days without treatment. Topical gels containing benzydamine (an anti-inflammatory) or corticosteroids can reduce pain and accelerate healing. A saltwater rinse — half a teaspoon in a glass of warm water, rinsed gently several times a day — provides mild antiseptic relief.

When to seek assessment: An ulcer or sore area on the palate that has not healed after three weeks, regardless of how benign it looks, should always be professionally assessed. Persistent oral ulceration that does not resolve can, in a minority of cases, represent something that needs further investigation.

3. Dental abscess: upper tooth infection causing palatal pain

This is one of the most clinically important causes of pain in the roof of the mouth, because it can be missed when the patient — and sometimes even the clinician — attributes palatal pain to the palate itself rather than looking at the upper teeth.

The roots of the upper molars and premolars sit close to, and sometimes protrude into, the maxillary sinus above. A periapical abscess — an infection at the root tip of an upper tooth — can drain through the palatal bone and present as a swelling or painful area on the hard palate alongside the affected tooth. This is called a palatal abscess.

What to look for: A raised, often shiny or fluctuant swelling on the hard palate, typically positioned alongside a specific upper tooth. The tooth itself may be tender to bite on, and the patient may have a history of toothache in that area — though in some cases the nerve has already died and the tooth causes no sensitivity at the time of the abscess.

Why this matters urgently: A dental abscess will not resolve without treatment. Antibiotics may temporarily suppress an abscess but do not treat the underlying cause — the infected pulp or periodontal pocket that is driving the infection. Left untreated, a palatal abscess can expand, spread to adjacent structures and, in rare cases, become a far more serious spreading infection.

The definitive treatment for a palatal abscess from a root infection is root canal treatment — removing the infected pulp tissue, cleaning the canal system and sealing it — or extraction of the tooth if it cannot be saved. This is precisely the kind of situation our emergency dentist service in Sheffield handles. Emergency consultations are currently available for just £45 (normally £99, for a limited time). If you have a painful swelling on the roof of your mouth alongside a tooth that has been aching, please do not wait.

4. Sinus infection (maxillary sinusitis) causing palatal pain

The maxillary sinuses sit directly above the upper back teeth, separated from the roots of those teeth by a thin layer of bone — sometimes paper-thin, sometimes with the roots actually projecting into the sinus itself. When the maxillary sinus becomes inflamed or infected (sinusitis), the increased pressure and inflammation can be felt as pain in the roof of the mouth, as well as the more typically described facial pressure and cheekbone tenderness.

How to recognise sinus-related palatal pain:

• The pain affects several upper teeth simultaneously rather than being focused on one specific tooth
• It worsens when bending forward, lying down, or moving the head quickly
• It is accompanied by nasal congestion, post-nasal drip, reduced sense of smell or pressure behind the cheekbones
• It developed during or shortly after a cold or upper respiratory infection

Sinus-related palatal and dental pain typically resolves as the sinusitis resolves — with steam inhalation, nasal decongestants, saline rinses and ibuprofen managing symptoms while the immune system clears the infection. Bacterial sinusitis that does not resolve within ten to fourteen days may need antibiotics from a GP.

If palatal pain is accompanied by sinus symptoms, a dental assessment can help determine whether the teeth are the source or whether the sinus is the primary problem — an important distinction because the treatments are completely different.

5. Torus palatinus: a normal bony growth

Torus palatinus is a benign bony growth along the midline of the hard palate. It is a normal anatomical variant, present in a significant proportion of the adult population, and has no clinical significance in most cases.

Most people with torus palatinus are unaware they have it — they may discover it by feeling the midline ridge with their tongue, or a dentist may point it out during examination. Occasionally, torus palatinus becomes sore — usually because the overlying mucosa, which is thin in this area, has been traumatised by hard or sharp food, or because a new denture is irritating the area.

If a previously symptom-free bony ridge on the palate has become sore without obvious trauma, it is worth having it looked at — not because torus palatinus is dangerous, but to confirm the diagnosis and rule out anything else.

6. Oral herpes (cold sores on the palate)

Primary herpes simplex infection — first exposure to the herpes simplex virus — can cause widespread, painful ulceration throughout the oral cavity, including the palate. This is most common in young children but can occur in adults. The initial infection is typically accompanied by fever, swollen lymph nodes and general malaise alongside the oral ulceration.

Recurrent herpes lesions (the type most adults are familiar with as cold sores on the lips) occasionally occur intraorally on the hard palate in immunocompromised patients. These present as clusters of small, shallow ulcers that heal over one to two weeks.

If you have significant multiple ulcers on the palate alongside a fever and systemic symptoms, particularly if this came on suddenly, medical assessment rather than dental assessment is the initial priority.

7. Oral lichen planus

Oral lichen planus is a chronic inflammatory condition affecting the oral mucosa. While most commonly affecting the cheeks, it can also appear on the palate, producing a characteristic white lace-like (striated) pattern or, in its erosive form, painful raw red areas.

The erosive form of oral lichen planus can be significantly painful and affects eating and quality of life. Management involves corticosteroid preparations and, in some cases, other immunomodulatory medications. It requires ongoing monitoring because — although the risk is small — there is an association with malignant transformation over many years.

Any chronic, non-healing lesion on the palate should be assessed at a general dentistry appointment and, if appropriate, referred for specialist oral medicine assessment.

8. Poorly fitting dentures

If you wear an upper denture and have developed pain on the roof of the mouth, the denture itself may be the cause. Pressure sores from an ill-fitting denture, a cracked denture that has developed a sharp edge, or denture-related stomatitis (a fungal infection beneath a denture) can all produce palatal discomfort.

Denture-related stomatitis — oral thrush beneath an upper denture — presents as erythema (redness) of the palate under the denture, sometimes with a slightly rough or granular texture. It is usually painless initially but can become sore over time. It is managed by improving denture hygiene, removing the denture at night, using antifungal preparations, and in some cases having the denture remade if it is old and porous.

Patients who have worn the same denture for many years without adjustment are particularly prone to fit-related palatal problems as the underlying bone changes shape. A dental assessment to review denture fit is appropriate if palatal discomfort has developed or worsened.

9. Neuralgia and nerve-related pain

Several nerve pain conditions can produce pain that is felt in the roof of the mouth, despite not originating from a structural problem in the palate itself.

Trigeminal neuralgia is a severe, lancinating (sharp, stabbing) facial pain that follows the distribution of the trigeminal nerve. It can produce sudden, intense pain in the palate, upper teeth or cheek, typically triggered by light touch, eating, speaking or brushing. It is more common in older adults.

Burning mouth syndrome is a chronic pain condition characterised by a burning sensation affecting the oral mucosa — often the tongue, but also the palate and lips. The oral tissues appear normal on examination. It is more common in post-menopausal women and is associated with nutritional deficiencies, dry mouth, anxiety and hormonal changes.

These conditions require medical or specialist assessment for diagnosis and management. A dental assessment helps rule out dental and oral causes first.

10. Something stuck in the palate

Less dramatic than most of the above, but a genuinely common cause of localised pain in the roof of the mouth: a piece of food or a small foreign body lodged in the palate. Fish bones, shells from nuts, the ends of toothpicks — these can become embedded in the palatal tissue and cause a persistent, localised sore spot that does not resolve until the foreign body is removed.

If you have a very localised, point-specific pain in the palate that developed after eating, examine the area carefully with a light and mirror. If something is visible and accessible, it may be removable; if not, a dental appointment will resolve it quickly.