Tenderness behind the ear when you press on it usually traces back to one of a handful of causes, ranging from a swollen lymph node or a tight neck muscle to an infection of the bone itself. The area behind the ear, called the mastoid region, is a surprisingly busy intersection of bone, nerve branches, lymph tissue, muscles, and the tail end of the parotid salivary gland. Because so many structures are packed into that small space, the same complaint can come from very different problems, and the character of the pain, what else is going on, and how long it has been there all help narrow it down.
Swollen Lymph Nodes Are the Most Common Culprit
A cluster of small lymph nodes sits directly behind and below each ear, often called the posterior auricular and superficial cervical nodes. When your body fights off a cold, an ear infection, a sore throat, or even a minor scalp wound, these nodes swell and become tender to touch. The pain is typically dull and aching, and you can feel a soft, movable lump under the skin. In most cases, the swelling resolves on its own once the underlying infection clears, and it rarely means anything serious. Persistent, hard, or painless lumps that do not shrink after a couple of weeks are a different story and worth having a clinician examine.
Muscle Tension and Trigger Points
The sternocleidomastoid muscle runs from the base of the skull behind the ear down to the collarbone and breastbone. It is one of the most overworked muscles in modern life: hunching over a screen, cradling a phone between your ear and shoulder, or sleeping in an awkward position can leave it tight and irritated. When trigger points develop in this muscle, they can refer pain to the face, the forehead, and the area right behind the ear. A case study published on SCM dysfunction documented that tightness and trigger points within both heads of the muscle produced head and face pain along with dizziness and nausea.1PubMed Central. Sternocleidomastoid syndrome: a case study Pressing the mastoid area in this situation reproduces or worsens the pain because you are compressing the muscle’s upper attachment point.
You can often identify this cause yourself. If turning your head to one side or tilting it toward the opposite shoulder makes the tenderness worse, and you can feel a ropey, tight band in the side of your neck, muscle tension is likely involved. Gentle stretching, heat, massage, and correcting your posture at a desk tend to resolve it within days. When the tightness is chronic or keeps coming back, a physical therapist can address the pattern more systematically.
Mastoiditis
The mastoid bone is the hard bump you can feel behind each ear. It is not solid; inside it are small, air-filled pockets that connect to the middle ear. When a middle ear infection spreads into these air cells, the result is acute mastoiditis, which is the most common complication of acute otitis media.2PubMed Central. Acute mastoiditis in children It affects children far more often than adults, but it can happen at any age.
The hallmarks are redness and swelling over the bone behind the ear, fever, ear discharge, and marked tenderness when you press on the mastoid. In some cases the ear itself is pushed forward and outward by the swelling. Common bacteria involved include Streptococcus and Staphylococcus species, and the condition is treated with antibiotics, sometimes with surgical drainage if an abscess forms.3PubMed. High risk and low prevalence diseases: Acute mastoiditis Left untreated, mastoiditis can lead to serious complications including abscess formation, facial nerve damage, and in rare cases intracranial infection.2PubMed Central. Acute mastoiditis in children If you or your child has a recent ear infection followed by worsening pain, swelling, and redness behind the ear, this needs same-day medical attention.
Occipital Neuralgia
The lesser occipital nerve runs up from the upper neck and wraps around the back of the skull to the area behind and above the ear. When this nerve or its neighbor, the greater occipital nerve, becomes irritated or compressed, the result is occipital neuralgia: sharp, shooting, or stabbing pain that starts in the upper neck or back of the head and can radiate behind the ears and even to the front of the head.4Journal of Craniofacial Surgery. An Update on the Diagnosis, Treatment, and Management of Occipital Neuralgia The pain tends to come in bursts, sometimes triggered by turning the head or pressing on a specific spot behind the ear.
Trauma or chronic irritation of the occipital nerves is the most common underlying cause.5PubMed. Occipital neuralgia That includes whiplash, poor posture, tight suboccipital muscles, or degenerative changes in the upper cervical spine. On examination, pressing over the path of the greater or lesser occipital nerve reproduces the pain, and patients often describe tenderness at a very specific point rather than a broad, vague area.4Journal of Craniofacial Surgery. An Update on the Diagnosis, Treatment, and Management of Occipital Neuralgia Treatment ranges from anti-inflammatory medication and physical therapy to nerve blocks for stubborn cases.
One way to distinguish occipital neuralgia from a swollen lymph node or muscle strain: the pain quality is electric or stabbing rather than dull and aching, and it often shoots along a line from the back of the neck toward the top of the head or behind the ear rather than sitting in one fixed spot.
Jaw Joint Problems
The temporomandibular joint sits just in front of the ear canal, and problems with it frequently send pain into and behind the ear. This referred pain pattern has been documented for decades. A classic paper in otolaryngology noted that headache and ear symptoms can arise directly from disturbed function of the mandibular joint, and that the pain pattern mimics sinus-related headaches closely enough to be mistaken for them.6Annals of Otology, Rhinology & Laryngology. I. A syndrome of Ear and Sinus Symptoms Dependent upon Disturbed function of the Temporomandibular Joint
If the pain behind your ear gets worse with chewing, yawning, or opening your mouth wide, and you notice clicking or grinding in your jaw, the joint is a strong suspect. People who clench or grind their teeth at night are especially prone. The connection can be confusing because you feel the pain behind the ear, not in the jaw itself, which is why TMJ-related ear pain is often misdiagnosed. A dental exam or evaluation by an oral-maxillofacial specialist can confirm whether the joint is the source. Treatment usually involves a bite guard, jaw exercises, and avoiding extreme jaw movements.
Ear Piercing and Cartilage Infections
If you have a recent piercing, especially one through the cartilage of the upper ear, tenderness and pain spreading behind the ear can signal perichondritis, an infection of the tissue surrounding the ear cartilage. Piercings through cartilage carry a higher infection risk than simple earlobe piercings, and the usual culprit is Pseudomonas aeruginosa, a bacterium that can be resistant to common antibiotics.7BMJ. “High” ear piercing and the rising incidence of perichondritis of the pinna The infection creates a subperiosteal abscess that, if not treated promptly, can destroy the underlying cartilage and result in permanent deformity sometimes called cauliflower ear.7BMJ. “High” ear piercing and the rising incidence of perichondritis of the pinna
Signs to watch for include redness and swelling that spread beyond the piercing site, warmth, increasing pain, and sometimes pus. The surrounding tissue behind the ear can become tender and swollen because the infection extends beyond the visible piercing hole. Early treatment with the right antibiotic matters here because standard first-line antibiotics may not cover Pseudomonas. If a cartilage piercing is getting worse rather than better after the first day or two, see a clinician rather than waiting it out.
Viral Infections and Herpes Zoster Oticus
Several viral infections cause pain behind the ear, but one in particular is worth knowing about: Ramsay Hunt syndrome, also known as herpes zoster oticus. This happens when the varicella-zoster virus, the same virus that causes chickenpox and shingles, reactivates in the nerve that controls facial movement. The classic triad is ear pain, small blistering vesicles in or around the ear canal, and weakness or paralysis on one side of the face.8Cureus. An Atypical Case of Varicella Meningitis in a Young Immunocompetent Male Patient With a Possible Concomitant Case of Ramsay-Hunt Syndrome
The pain often starts before the rash appears, so for a day or two you might have nothing but deep, burning pain behind the ear with no visible explanation. When blisters do show up, they tend to appear inside the ear canal or on the outer ear. Ramsay Hunt syndrome needs antiviral medication and sometimes corticosteroids, ideally started within the first 72 hours for the best chance of full recovery of facial nerve function. If you have intense ear pain followed by facial weakness or tiny blisters near the ear, seek medical care promptly.
Less dramatically, common viral upper respiratory infections can cause retroauricular pain simply by swelling the lymph nodes and inflaming the middle ear. The Epstein-Barr virus (responsible for mononucleosis) and mumps can also produce tenderness behind the ear, the latter because it inflames the parotid gland, which wraps around the back of the jaw and extends up toward the ear.
Parotid Gland Problems
The parotid salivary gland is the largest of the major salivary glands, and its tail extends behind the angle of the jaw toward the ear. Infections, stones blocking the duct, or inflammation of the gland can all produce pain that you feel behind and below the ear. Acute suppurative parotitis, a bacterial infection of the gland, typically develops when salivary flow decreases, often in people who are dehydrated, postoperative, or on medications that dry out the mouth. It is an ascending infection from the duct and tends to present with fever along with swelling and tenderness in the preauricular and retroauricular region.9JAMA Network (Archives of Surgery). PYOGENIC INFECTION OF THE PAROTID GLANDS AND DUCTS
A salivary duct stone causes a different pattern: the pain and swelling typically spike when you eat or even think about food, because the gland tries to release saliva into the duct but the stone blocks it. The swelling may settle between meals and flare up again with the next one. Small stones sometimes pass on their own. Larger ones require removal, occasionally with a minor procedure.
Nerve Anatomy Explains Why So Many Things Hurt in the Same Spot
One reason the behind-the-ear area is such a pain hotspot is that multiple nerves converge there. The great auricular nerve, a sensory branch of the cervical plexus, provides feeling to the skin of the parotid region and the area around the ear.10PubMed Central. Great auricular nerve: anatomy and imaging in a case of perineural tumor spread The lesser occipital nerve covers the skin behind the upper ear. The auriculotemporal branch of the trigeminal nerve sweeps past the jaw joint on its way to the temple. And branches of the facial nerve and vagus nerve pass through the area as well.
This convergence means that irritation originating in the jaw, the upper neck, the middle ear, or even the throat can all produce pain that the brain maps to roughly the same spot behind the ear. It also explains why pressing behind the ear sometimes triggers pain that radiates somewhere unexpected, like the back of the head, the temple, or down the neck. The medical term for this is referred pain, and it is the main reason that behind-the-ear tenderness can be tricky to diagnose without considering structures beyond the ear itself.
Giant Cell Arteritis in Older Adults
In people over 50, an uncommon but important cause of head and temple pain is giant cell arteritis, an inflammatory condition of the blood vessel walls. It typically affects the temporal arteries on the side of the head, but because branches of these arteries extend behind the ear, tenderness in the retroauricular area can be part of the picture. Giant cell arteritis is considered a medical emergency primarily because of the risk of sudden vision loss, which can be permanent and bilateral.11PubMed Central. Review of Giant cell arteritis
Accompanying symptoms often include a new headache (especially over the temples), scalp tenderness, jaw pain while chewing, fatigue, and sometimes blurry vision or sudden visual changes. If you are over 50 and have new, persistent head or retroauricular pain with any of those features, particularly visual symptoms, this warrants urgent evaluation. Blood tests for inflammatory markers and sometimes a biopsy of the temporal artery can confirm the diagnosis, and treatment with corticosteroids usually needs to start before biopsy results come back.
Everyday Mechanical Causes You Might Not Think Of
Not every instance of behind-the-ear pain has a dramatic explanation. Some of the most common triggers are purely mechanical. Eyeglasses that fit too tightly press on the skin and periosteum behind the ear for hours at a stretch. Over-ear headphones and behind-the-ear hearing aids can do the same, especially with prolonged use. Sleeping on one side on a firm pillow can compress the mastoid area enough to leave it sore the next morning.
These causes are easy to overlook because the tenderness can persist for a day or two after the pressure is removed, especially if the skin has been irritated against the bone. If the pain is only on one side, matches the side you sleep on or the side your glasses sit tighter on, and there is no swelling, redness, or fever, a mechanical cause is the most likely explanation. Adjusting the fit of your glasses, rotating headphone use, or switching your sleeping position usually solves it.
Sorting Out What You Are Dealing With
Because so many structures converge behind the ear, paying attention to a few key details helps you figure out what is going on before you see a clinician.
- Onset and duration: Pain that appeared gradually over days alongside a cold or sore throat points toward lymph nodes. Sudden, severe pain with fever after a recent ear infection suggests mastoiditis.
- Pain quality: Dull and aching favors lymph nodes, muscle tension, or salivary gland issues. Sharp, shooting, or electric pain favors occipital neuralgia.
- Associated symptoms: Facial weakness or blisters near the ear point toward Ramsay Hunt syndrome. Jaw clicking or pain with chewing suggests the jaw joint. Visual changes with temple tenderness in someone over 50 suggest giant cell arteritis.
- What makes it worse: Pain that spikes with eating likely involves the parotid gland. Pain that worsens with neck movement or posture implicates muscles or the cervical spine. Pain unaffected by movement but worsening with pressure alone points toward the bone or overlying lymph nodes.
Most behind-the-ear pain is self-limiting and resolves within a week or two, especially when caused by reactive lymph nodes, muscle tension, or mechanical irritation. Situations that call for prompt medical evaluation include high fever with mastoid swelling, facial weakness, new visual disturbances, rapidly worsening redness and swelling after a piercing, or pain that persists for more than two to three weeks without improvement.