Do Dogs Give Up Crying? The Science Behind Canine Tears
Do dogs give up crying? Explore the science of canine tear production, emotional expression, and what your dog's eyes are really telling you.
Quick Answer: Do Dogs Give Up Crying?
No — dogs do not cry emotional tears the way humans do, so there is nothing to "give up." While dogs produce basal and reflex tears to lubricate and protect their eyes, peer-reviewed research shows they lack the physiological pathway to shed tears in response to sadness, frustration, or grief. If your dog's eyes are watering excessively, it signals a medical issue — not an emotional breakdown. However, dogs absolutely vocalize distress (whining, howling, whimpering), and they can habituate to chronic stressors, which some owners interpret as "giving up."
Why Do Dogs Produce Tears If They Don't Cry?
To understand whether dogs can give up crying, we first need to separate tear production from emotional crying. These are two entirely different biological processes.
The Three Types of Tears
According to the Merck Veterinary Manual, mammals produce three categories of tears:
- Basal tears: Constantly secreted to keep the cornea moist and nourished. Dogs produce these 24/7, just like humans.
- Reflex tears: Triggered by irritants — dust, wind, allergens, or a stray eyelash. The lacrimal gland ramps up production to flush the eye.
- Emotional (psychic) tears: Triggered by the limbic system in response to strong feelings. This type is uniquely documented in humans among all mammals.
Dogs possess the lacrimal apparatus for basal and reflex tearing, but the neurological bridge between the limbic system (emotional processing) and the lacrimal gland that produces psychic tears in humans does not exist in canines in a functional capacity.
The Schirmer Tear Test: Measuring Canine Tear Production
Veterinarians use the Schirmer Tear Test (STT) to measure a dog's tear output. A small strip of filter paper is placed inside the lower eyelid for 60 seconds. Normal values for dogs fall between 15–25 mm of wetting per minute. Values below 15 mm indicate keratoconjunctivitis sicca (KCS), commonly called dry eye — a condition where the dog literally cannot produce enough tears, leading to corneal damage if untreated.
| Result (mm/min) | Interpretation | Action Needed |
|---|---|---|
| > 25 mm | Overproduction (possible reflex tearing from irritation) | Vet exam to identify irritant or blockage |
| 15–25 mm | Normal tear production | None — healthy baseline |
| 10–14 mm | Borderline / early KCS | Monitor, retest in 4–6 weeks |
| < 10 mm | Keratoconjunctivitis sicca confirmed | Prescription cyclosporine or tacrolimus drops; lifetime management |
The cost of a Schirmer Tear Test at a general practice vet typically runs $25–$50 as part of an ophthalmic exam. Full ophthalmologic workups at a veterinary specialist range from $150–$400 depending on your region.
The Evolutionary Basis: Why Wolves and Dogs Don't Cry Tears
What Ancestral Canids Tell Us
In the wild, visible tear-streaming would be an evolutionary liability. Wolves (Canis lupus) and other wild canids rely on clear vision for hunting, navigating terrain, and reading subtle social cues from pack members. Chronic tear overflow would blur vision and leave salt deposits on facial fur, potentially signaling vulnerability.
Emotional tear-shedding appears to be a uniquely human adaptation — possibly evolving as a visual distress signal that elicits caregiving from others in our social groups. Research published in the journal Evolutionary Psychology suggests that human emotional tears contain stress hormones and manganese, hinting at a detoxification function alongside their social signaling role.
Dogs, by contrast, evolved different distress signaling: vocalizations (whining, yelping, howling), body language (tail tucking, ear flattening, submissive postures), and behavioral changes (appetite loss, withdrawal, destructive behavior). These signals are far more functional for a species that communicates primarily through sound and movement rather than facial fluid display.
How Do Dogs Process and Express Emotions Without Tears?
Dogs have a rich emotional life — science confirms this. Functional MRI studies conducted by neuroscientist Dr. Gregory Berns at Emory University demonstrated that dogs' caudate nuclei (the brain's reward center) activate in patterns remarkably similar to humans when anticipating positive experiences. However, the prefrontal cortex — the region most associated in humans with the complex emotional processing that triggers psychic tears — is proportionally smaller and differently wired in canines.
The Canine Distress Toolkit
Instead of tears, dogs deploy a layered communication system when experiencing sadness, anxiety, or frustration:
- Whining and whimpering: High-pitched vocalizations that activate caregiving responses in humans — research from the ASPCA notes these are among the most common distress signals in domestic dogs.
- Howling: A carry-over from wolf pack communication, used to signal separation distress or to locate separated group members.
- Panting (non-thermal): Stress panting occurs without heat or exercise — often seen at vet visits or during thunderstorms.
- Lip licking and yawning: Appeasement and displacement signals indicating internal conflict or anxiety.
- Shaking off: A "reset" behavior dogs perform after stressful encounters — thought to discharge adrenaline.
- Learned helplessness (the real "giving up"): When a dog is repeatedly exposed to an inescapable stressor, they may stop trying to escape or signal distress. This is the closest behavioral analog to "giving up crying" — and it's a serious welfare concern, not a normal coping mechanism.
Learned Helplessness: When Dogs Actually Do "Give Up"
The concept of learned helplessness, first described by psychologist Martin Seligman, applies to dogs as well as humans. A dog subjected to chronic, unavoidable stress — such as persistent punishment-based training, prolonged confinement without enrichment, or unaddressed separation anxiety — may eventually stop vocalizing or attempting to change their situation.
This is not emotional maturity or "getting over it." It is a documented psychological state where the animal's stress-response system becomes dysregulated. Cortisol levels may remain chronically elevated even though outward behavior appears calm. Dogs in learned helplessness often show:
- Flat affect — reduced responsiveness to both positive and negative stimuli
- Decreased play behavior and social engagement
- Appetite changes (typically reduction)
- Increased sleep or apparent lethargy
- Failure to respond to cues they previously knew
If you recognize these signs, consult a veterinarian and a certified force-free behaviorist (look for IAABC or CCPDT credentials). This is not a training problem — it requires environmental and potentially pharmacological intervention.
Common Misconceptions About Dogs and Crying
| Myth | Scientific Fact |
|---|---|
| "My dog cried tears when I left for work — he was so sad." | Eye moisture upon reunion is likely reflex tearing from excitement-induced facial muscle contraction or environmental irritants, not emotional crying. |
| "Dogs stop whining because they get over separation anxiety." | Reduced vocalization may indicate learned helplessness, not resolution. The underlying anxiety persists without intervention. |
| "Some breeds cry more than others." | Certain breeds are more vocal (Huskies, Beagles, German Shepherds), but no breed produces emotional tears. Tear staining in brachycephalic breeds is a drainage issue, not crying. |
| "If my dog's eyes water at the vet, he's scared and crying." | Stress can trigger reflex tearing through autonomic nervous system activation, but this is physiologically distinct from human emotional crying. |
| "Dogs grieve the same way humans do." | Dogs do experience grief-like behavioral changes (appetite loss, searching, vocalization) after losing a companion, but the expression and likely the cognitive experience differ from human grief. |
Breed Variations: Tear Production and Facial Structure
While no breed cries emotional tears, facial anatomy significantly affects how tears drain and whether overflow is visible:
Brachycephalic Breeds and Epiphora
Flat-faced breeds — Pugs, Bulldogs, Shih Tzus, Pekingese, Boston Terriers — have shallow eye sockets and compressed nasolacrimal ducts. Tears that would normally drain through the duct into the nasal cavity instead overflow onto the face, causing epiphora (chronic tear staining). This is a structural plumbing problem, not emotional expression.
Managing epiphora in brachycephalic breeds involves:
- Daily wiping with a sterile, vet-approved eye wipe (products like Angel Eyes Natural Wipes or Epi-Otic pads, typically $8–$15 per pack)
- Keeping facial folds clean and dry to prevent bacterial or yeast dermatitis
- Veterinary assessment if staining suddenly increases — could indicate corneal ulcer, entropion, or blocked duct
Breeds Prone to Dry Eye (KCS)
At the opposite end of the spectrum, certain breeds are genetically predisposed to insufficient tear production:
- Cocker Spaniels — KCS prevalence estimated at 5–10% of the breed
- West Highland White Terriers
- Bulldogs (English and French)
- Shih Tzus
- Lhasa Apsos
- Pugs — some individuals have both epiphora and KCS in different areas of the same eye
Lifetime management with cyclosporine ophthalmic ointment (Optimmune) runs approximately $30–$50 per tube, with each tube lasting 3–6 weeks depending on dosing frequency. Newer alternatives like tacrolimus compounded drops may cost $40–$80 per month.
When Watery Eyes Signal a Medical Problem
When to See the Vet
Since dogs don't cry emotional tears, any noticeable increase in eye discharge warrants investigation. Consult your veterinarian promptly if you observe:
- Sudden onset of excessive tearing in one or both eyes
- Yellow, green, or bloody discharge — indicates infection, injury, or systemic illness
- Squinting, pawing at the eye, or keeping one eye closed — possible corneal ulcer (a veterinary urgency)
- Cloudiness or blue-gray haze over the cornea
- Visible third eyelid protrusion — may indicate pain, dehydration, or neurological issue
- Swelling around the eye — could be an abscess, tumor, or allergic reaction
Corneal ulcers can progress to perforation within 24–48 hours if untreated. Emergency veterinary ophthalmology visits typically cost $200–$600 for initial assessment and treatment.
Behavioral Red Flags: When "Stopping Crying" Is a Welfare Issue
If your dog was previously vocal about a stressor (thunderstorms, being left alone, car rides) and suddenly goes silent, do not assume the problem resolved on its own. Possible explanations include:
- Learned helplessness — the dog has given up trying to communicate distress
- Sensory decline — hearing loss in senior dogs may reduce vocal responses to auditory triggers
- Cognitive dysfunction syndrome — canine dementia can alter vocalization patterns in dogs over 10 years old
- Effective behavior modification — if you've been working with a force-free trainer using counter-conditioning and desensitization, reduced vocalization paired with relaxed body language is a positive sign
The key differentiator is body language context. A dog who has genuinely improved will show loose, relaxed posture, normal appetite, and willingness to engage. A dog in learned helplessness will appear shut down — stiff, avoidant, and unresponsive.
How Is Canine Emotional Expression Different From Humans?
Humans are among the very few species confirmed to produce emotional tears. Some research suggests rats may produce tear-like secretions under distress, but this remains contested. For dogs, the emotional expression gap looks like this:
| Emotional State | Human Expression | Canine Expression |
|---|---|---|
| Sadness / grief | Tears, crying, verbal expression | Appetite loss, searching behavior, increased vocalization or withdrawal |
| Joy | Smiling, laughing, tears of happiness | "Play face" (open mouth, relaxed eyes), zoomies, tail wagging, vocalizing |
| Fear | Crying, trembling, verbal calls for help | Trembling, hiding, stress panting, whale eye, lip licking, fleeing |
| Frustration | Crying, anger, verbal complaints | Barking, pawing, redirected chewing, whining, barrier frustration |
| Relief / comfort | Tears, sighing, verbal expression | Deep exhale ("sigh"), leaning into contact, slow blinking, settling
Understanding these differences prevents us from misreading our dogs. A dog who isn't "crying" isn't necessarily fine — they may simply be communicating distress in ways we haven't learned to read yet.
Frequently Asked Questions
Do dogs give up crying when left alone?
Dogs with separation anxiety may initially bark, whine, or howl when left alone. If these behaviors suddenly stop without structured behavior modification, it may indicate learned helplessness rather than genuine improvement. Hidden camera footage often reveals that "quiet" dogs still pace, pant, or display stress body language. A certified force-free behaviorist can help distinguish resolution from shutdown. Expect to invest $150–$300 for an initial behavior consultation.
Can dogs cry from pain?
Dogs vocalize pain through yelping, whining, growling, or sudden silence depending on severity and temperament. They do not shed tears from pain. However, eye injuries themselves cause reflex tearing — so a dog with a scratched cornea will have a watery eye, but this is a protective reflex, not emotional crying. Any suspected pain warrants a veterinary exam.
Why does my dog's face look wet around the eyes?
Most likely causes: epiphora (tear overflow from blocked or shallow nasolacrimal ducts, common in flat-faced breeds), conjunctivitis, allergies, or a foreign body. In rare cases, it can indicate a lacrimal gland tumor. A vet exam with fluorescein staining ($40–$80) can rule out corneal damage.
Is it normal for my dog to whine a lot?
Frequent whining is normal in some breeds (Huskies, German Shepherds, Beagles are notably vocal) and in puppies still learning to communicate. However, a sudden increase in whining in an adult dog may indicate pain, anxiety, cognitive decline, or an unmet need. Context matters — whining at the door is communication; whining while lying still may be distress.
Do dogs know when humans cry?
Yes. A 2018 study published in Learning & Behavior found that dogs not only recognize human crying through auditory and visual cues but are more likely to approach and attempt to comfort a crying person — even a stranger — compared to a humming person. This empathic response does not, however, mean dogs experience crying themselves in the same way.
How can I tell if my dog is sad?
Look for behavioral clusters rather than single signs: decreased appetite, reduced interest in play or walks, increased sleeping, withdrawal from family interaction, and changes in vocalization patterns. If these persist beyond 48–72 hours, schedule a veterinary exam to rule out underlying medical causes (hypothyroidism, chronic pain, and dental disease can all mimic depression). Always consult your veterinarian before assuming a behavioral cause for physical symptoms.
Related Canine Science Topics
- Can dogs sense human emotions? — Exploring canine empathy and emotional contagion research
- Why do dogs sigh? — The science of canine vocalizations and contentment signals
- Learned helplessness in dogs — How punishment-based training damages the human-dog bond
- Canine cognitive dysfunction — Understanding dementia-like changes in senior dogs
- Separation anxiety vs. isolation distress — Two different conditions requiring different treatment approaches
Aaron Whyte
All our authors care for dogs every day — read more of their work on the authors page.
