What is Otalgia (Ear Pain)?
Ear pain, also known as otalgia, falls into two broad categories. The first is primary otalgia, which is ear pain directly resulting from a problem in your ear, be it the inner, middle, or outer part. The second is secondary or referred otalgia, which refers to ear pain that comes from conditions outside the ear.
Ear pain can be quite complicated because the nerves in our ears also connect with other parts in our body. These interconnected nerves can potentially lead to ear pain originating from different parts of the body, not just the ear itself.
The nerves that connect to the ear are cranial nerves V (Trigeminal), VII (Facial), IX (Glossopharyngeal), and X (Vagus), as well as cervical plexus branches C2 and C3. These same nerves also connect to structures beyond the ear, so issues with them might result in referred ear pain.
Understanding how these nerves work might seem complex, so let’s break it down:
The Trigeminal nerve (V) has three parts. It provides feeling to the face, sinuses, the roof of the mouth, and the teeth, and controls some muscles in the jaw. One branch connects to the jaw joint, often causing ear pain with dental or jaw joint issues.
The Facial nerve (VII) controls taste in the front two-thirds of the tongue and salivary glands under the tongue. It also controls certain muscles in the ear and face. This nerve can cause ear pain through inflammation, known as geniculate neuralgia.
The Glossopharyngeal nerve (IX) controls taste and sensation in the back third of the tongue. It also relates to the muscles in the throat.
The Vagus nerve (X) connects to the sinuses, thyroid gland, voice box and parts of the digestive system. It can affect the heart, lungs and parts of the digestive system, too. So, issues with this nerve might also show up as ear pain.
The cervical plexus branches (C2 and C3) connect nerves in the top part of the spine to part of the ear, back of the head and certain muscles in the neck.
In understanding how these nerves are interconnected, doctors can better identify whether the ear pain is coming directly from the ear or from elsewhere in the body. This also aids in making a more accurate diagnosis, which is necessary for proper treatment and relief from ear pain.
What Causes Otalgia (Ear Pain)?
Understanding the cause of ear pain, or otalgia, can be complicated, which is why it’s crucial to examine it thoroughly and systematically. Ear pain can be broken down into primary and secondary otalgia.
Primary otalgia is typically a result of an infection, a physical cause, a growth, or inflammation that occurs directly in the ear. On the other hand, secondary otalgia comes from problems in other parts of your body that can affect your ears. These sources are grouped into local and regional causes. Locally, problems around the teeth, jaw joint, and throat can cause ear pain (this is pictured in the image titled, “Temporomandibular Joint Disorder”).
Similarly, some issues that seem unrelated, like heart problems, stomach issues, or lung conditions, can also result in ear pain. These are considered distant causes. It’s essential to remember that the source of the pain might not always be directly in the ear, which is why doctors take a comprehensive approach to fully understand and treat ear pain.
Risk Factors and Frequency for Otalgia (Ear Pain)
Ear complaints are quite common in primary health care. Ear pain, or otalgia, is more commonly found in males but can also occur in females. In children, otitis media, which is an inflammation of the middle ear, is the leading cause. Almost 80% of kids will have at least one episode of otitis media before they turn 3. This accounts for 9.5% of all children’s outpatient visits from 1997 to 1999 in the United States.
The most common cause of otitis media is Streptococcus pneumoniae. Vaccines were developed in 2000 and 2010 to combat this bacteria, significantly reducing the number of otitis media cases. However, otitis media due to a type of Haemophilus influenzae bacterium infection has become more frequent.
- Males are more prone to primary ear pain, while females are more likely to have secondary ear pain.
- Inconsistencies in medical literature cite TMJ disorders, dental issues, tonsillitis, and pharyngitis as common secondary causes of ear pain.
- People over 65 are more likely to experience ear pain from neck diseases.
- Females aged 20 to 40 are more likely to experience TMJ dysfunction.
- Although rare, malignancies or distant secondary causes such as thyroid, heart, gastrointestinal, or lung disorders must be considered during patient examination.
- Other unusual causes include petrous apicitis, malignant otitis externa, and Eagle syndrome. However, otalgia associated with migraines is starting to gain recognition.
Signs and Symptoms of Otalgia (Ear Pain)
When a patient is dealing with ear pain, which doctors call otalgia, a thorough history check and physical exam are necessary. The medical professional needs to think about both direct causes of the pain and secondary, underlying issues. Based on the patient’s medical history, specific features of the pain can point to its possible causes.
- Ear pain that started suddenly and is intense generally isn’t serious. However, ear pain that started slowly and continues often indicates more serious issues.
- Ear pain that persists for more than four weeks could be a sign of cancer, particularly if the patient has associated risk factors and normal ear test results.
- A sensation of fullness in the ear rather than outright pain could suggest cholesteatomas, which are skin growths that can develop in the middle ear.
- Sharp, stabbing ear pain might be a sign of nerve pain or damage.
- Pain in one ear rather than both is more common in cases of cancer.
- Pain that worsens when swallowing might point to glossopharyngeal neuralgia, a condition that affects a nerve in the brain that carries sensation from the throat.
Specific conditions can cause ear pain to flare up. For example, patients may feel relief from ear pain after ear or nasal treatments if they have normal physical exams and ear tests. Ear pain may also occur early after throat surgeries, such as tonsil removal.
However, certain ‘red flag’ symptoms alongside ear pain could be very serious:
- Difficulty swallowing, painful swallowing, a change in voice, or coughing up blood
- Loss of sight or seeing black spots
- Unintentional weight loss, shivers, fever, or night sweats
Certain risk factors can increase the chances of a severe condition like cancer:
- Long-term smoking
- Excessive alcohol use, generally defined as having around 3.5 or more drinks a day
- Previous infection with the human papillomavirus, or risk thereof, such as having more than ten oral sex partners
- Chronic suppression of the immune system, resulting from conditions like diabetes or HIV infection
Ear pain can sometimes be referred pain, meaning it comes from a different area of the body. Here are some symptoms that could go along with ear pain in this scenario and their possible origins:
- Nasal congestion associated with chronic rhinosinusitis
- Toothaches stemming from dental issues
- Hoarseness due to problems in the larynx
- Heartburn signifying gastroesophageal reflux
- Chest pain due to coronary artery disease
- Shortness of breath from a lung disease
- Upper back pain caused by cervical disc disease or pain in the muscles
- Headache, vision changes, feeling unwell, difficulty opening the jaw due to temporal arteritis
The physical examination of the patient experiencing ear pain involves a detailed evaluation. The provider checks for signs of ear infection or other ear-related issues. The nasal passage will get checked for inflammation or polyps. Oral health is assessed for cavities, loose fillings, ulcers, or abscess. The health professional may also examine the jaw joint for muscle sensitivities or syndrome. Other parts of the head or neck may be evaluated for tenderness, infection, or tumors. In some cases, the professional may find abnormalities in the cranial nerves pointing to neuralgia. Additional physical exams may be carried out on the neck, heart, lungs, and abdomen to find other potential sources of pain referred to the ear.
Testing for Otalgia (Ear Pain)
If you’re experiencing ear pain, the initial step your doctor will take is to conduct a thorough examination. This inspection of the ear is usually enough to figure out if the cause of the pain is due to an issue within the ear itself or if it’s stemming from another location. Even if it’s determined that the issue originates from your ear, further examination could still be necessary to find the exact problem.
Acute middle ear inflammation is a common cause of ear pain, often discovered by a simple ear examination using an instrument called an otoscope. Assessing ear drum movement and abnormalities sometimes doesn’t need further examination, unless there are signs of serious complications. An infection of the outer part of your ear canal, known as otitis externa, is another frequent cause of ear pain, easily spotted during an ear inspection.
Eustachian tube dysfunction, a common cause of ear pain, is often identified by abnormal findings during an ear examination. A device called a tympanometer can determine whether or not your ear drum is moving correctly. There is also a questionnaire, the Eustachian Tube Dysfunction Questionnaire (or ETDQ-7), that may be helpful. If you’re experiencing hearing loss, a hearing examination may be considered.
If your ear examination results come back normal, the doctor will undertake a comprehensive evaluation to look for other sources of your ear pain. Lab tests and imaging studies may be ordered based on your symptoms. Dental and jaw disorders are common sources of referred ear pain. A type of X-ray, known as an orthopantomogram, can provide a comprehensive view of the jaw and teeth. Imaging studies are usually not required to assess a jaw joint issue.
When serious conditions can’t be ruled out with a simple examination, more intensive procedures may be required. These can include imaging tests such as CT or MRI scans, examination of the inside of the nose and throat, and direct visualization of the upper part of the digestive system. CT scans can identify bone infection near the ear. Both CT and MRI scans can evaluate severe outer ear infection. A particular kind of MRI may be employed to assess nerve damage.
If there are suspicions of head and neck cancer, a biopsy, or tissue sample, may be taken from the primary site and any suspicious-looking lymph nodes. Additional CT and MRI scans can then be conducted to check for the spread of the cancer.
A complete blood count test may be chosen next to check for infection elsewhere in the body or throughout the system if the ear examination didn’t provide any leads. Pain relievers such as ibuprofen or acetaminophen may be prescribed if patients have no serious concerns, risk factors for cancer or signs of referred ear pain. If symptoms persist for longer than four weeks, a referral to a specialist and advanced diagnostic testing may be considered.
Any indicators of gastrointestinal disorders should prompt either a barium swallow X-ray or a referral for an upper gastrointestinal endoscopy. Chest pain and risk factors for heart disease may warrant a full heart evaluation. If there are clinical signs of inflammation of the arteries in your head, tests such as a blood sedimentation rate or a test for C-reactive protein may be required. A blood sedimentation rate above 50 mm per hour indicates the need for an urgent referral to an eye and ear, nose, and throat specialist.
Treatment Options for Otalgia (Ear Pain)
Ear pain, also known as otalgia, is often treated based on its underlying cause. In many cases, the primary cause of the ear pain is an infection, which is commonly treated with antibiotics. For example, if you have an ear infection co-occurring with an eye infection with pus, a type of antibiotic called amoxicillin with clavulanic acid is usually used as the first-line treatment.
Another possible cause of ear pain is due to a dysfunction in the Eustachian tube, which links your ear with the back of your throat. For this condition, decongestants or nasal steroids may be recommended to relieve symptoms. In some cases, a procedure called myringotomy, which involves creating a small hole in the eardrum to drain fluid, may be necessary.
Secondary causes of ear pain are varied. Some of these conditions need immediate medical attention. For instance, temporal arteritis, or inflammation of blood vessels near the temples, needs to be quickly treated. This condition typically requires a referral to a rheumatology specialist and treatment with anti-inflammatory drugs called steroids.
Other underlying conditions that might cause ear pain include cancer, tooth decay, a malfunction of the jaw joint (known as TMJ dysfunction), heart disease, or acid reflux. In these cases, treatment will focus on managing the underlying condition to also alleviate the ear pain.
What else can Otalgia (Ear Pain) be?
When a person reports ear pain, there could be many possible causes. These causes are grouped into two categories: primary and secondary otalgia. Primary otalgia includes conditions directly related to the ear, while secondary otalgia includes conditions caused by issues elsewhere in the body that may result in ear pain. To correctly identify the cause, doctors perform a thorough clinical evaluation and use diagnostic studies.
Under primary otalgia, conditions are categorized into infectious, mechanical, neoplastic (cancer-related), and inflammatory causes:
- Infectious Causes: Conditions like acute or chronic ear infections, herpes zoster oticus (Ramsay Hunt syndrome), and severe ear infections.
- Mechanical causes: Such as impairment in ear tube function, earwax buildup, sudden change in pressure causing ear pain (barotrauma), injury or fracture to the ear, or a foreign object lodged in the ear.
- Neoplastic Causes: Includes cancers like squamous cell carcinoma, basal cell carcinoma, melanoma, and a skin growth condition named cholesteatoma.
- Inflammatory Causes: Such as inflammation of the ear cartilage, recurrent inflammation of cartilage (Relapsing polychondritis), and a condition causing inflammation of blood vessels(Wegener granulomatosis).
Secondary otalgia, on the other hand, can be due to issues in various parts of the body:
- Head: Issues with blood vessels in the head (temporal arteritis).
- Sinus and Nose: Conditions like sinusitis or nasal polyps.
- Jaws: Conditions involving temporomandibular joint(TMJ) such as TMJ disorder or teeth grinding (bruxism).
- Bones near Ear: Conditions like petrous apicitis or Eagle syndrome.
- Salivary Glands: Conditions like inflammation of the salivary gland (sialadenitis), salivary gland stones (sialolithiasis), or salivary gland tumors.
- Oral Cavity: Issues like tooth decay, other dental diseases, or tongue cancer.
- Thyroid: Conditions like inflammation of the thyroid gland (thyroiditis) or thyroid cancer.
- Neck: Problems related to the main neck artery(carotidynia).
- Lymphatic System: Conditions like enlarged lymph nodes(lymphadenopathy) or cancer in lymph nodes.
- Nerves: Conditions which cause severe facial pain such as neuralgia in different nerves (trigeminal, glossopharyngeal, sphenopalatine, vagal, occipital, or geniculate).
- Throat: Diseases like inflammation in the back of the throat (pharyngitis), cancers of the throat or tonsils, pain after removal of tonsils, abscess in the neck space, or tonsillolithiasis.
- Larynx (Voice box): Conditions like inflammation of the voice box (laryngitis), impaired function of vocal cords, or voice box cancer.
- Musculoskeletal Disorders: Conditions like myofascial pain, torticollis, cervical disc degeneration, or nerve root inflammation in the neck(cervical radiculopathy).
- Lung Disease and Cardiac Problems: Conditions like heart attack (myocardial infarction).
- Gastrointestinal Disorders: Diseases like acid reflux (GERD) or esophageal cancer.
Some ear pain can be due to causes that cannot be easily identified or may be caused by psychological factors (Idiopathic or psychogenic).
What to expect with Otalgia (Ear Pain)
How long ear pain lasts and how serious it is usually depends on what’s causing it, how severe the main condition is, any other symptoms, and how quickly and correctly it’s treated. The pain, whether it’s originating from the ear itself (primary otalgia) or referred from somewhere else (secondary otalgia), can be caused by a whole range of things. The good news is they’re usually easily treated.
Possible Complications When Diagnosed with Otalgia (Ear Pain)
Acute and chronic pain, whether it’s ear pain or not, can have a huge impact on a person’s quality of life. Intense ear pain can create concentration problems, disrupt sleep, and lead to a negative mood. It’s essential to consider complications from the root causes of ear pain, as promptly identifying the cause can help prevent or decrease these conditions.
For primary ear pain, complications might include hearing loss, tinnitus (ringing in the ears), dizziness, ear discharge, cranial nerve problems (such as facial paralysis, facial numbness, and double vision), cerebrospinal fluid leak, and problems in the central nervous system. On the other hand, complications from secondary ear pain can range from nasal blockage and hormone disorders to blindness and even death from severe conditions like heart attacks and the spread of cancer.
Complications from Ear Pain:
- Concentration problems
- Sleep disruption
- Negative mood
- Hearing loss
- Tinnitus
- Dizziness
- Ear discharge
- Cranial nerve issues
- Cerebrospinal fluid leak
- Nasal blockage
- Hormone disorders
- Blindness
- Serious complications leading to death
Preventing Otalgia (Ear Pain)
Ear pain can come from many different sources. Some ways you can reduce the chances of getting ear pain include keeping your ears clean, using ear protection during work or recreation, avoiding getting water in your ears, controlling allergies, and avoiding harmful activities that could cause ear damage – like being exposed to very loud noises or blowing your nose too hard. If you’re experiencing ear pain because of another health issue, it can be beneficial to manage that underlying condition, stick to your treatment plan, avoid things that trigger your symptoms, and have regular health checkups. I will explain more precautions you can take below.
Primary ear pain is often seen in children aged 6 to 24 months due to what is called an acute middle ear infection (AOM), with a peak occurrence between 9 and 15 months of age. It’s reasonable for parents to observe the child’s condition for 24 to 72 hours before pursuing antibiotic treatment if the child is not showing severe symptoms. The American Academy of Pediatrics has helpful rules to guide when appropriate treatment should start. Interestingly, babies breastfed during their first 6 months of life get this type of ear infection less often than those who are fed formula. This might be due to the baby’s position and the way they swallow during feeding.
Secondary ear pain can come from various issues in the body, the causes are broad. Doctors must look out for warning signs that could suggest a serious or life-threatening condition when a patient comes in for secondary ear pain. Regular dentist appointments every 6 to 12 months can help keep your teeth healthy and reduce the chance of ear pain from dental issues. Regular medium-level exercise, like walking for 150 minutes a week, may help your heart stay healthy, which could also lessen the likelihood of secondary ear pain.