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Symptom guides · 22 symptoms

What's going on with your dog?

Common dog symptoms, common causes, and whether you need a vet or not.

Itching & Scratching →

Chronic scratching, licking, or biting at skin — often a signal of allergies, parasites, or a skin infection.

Paw Licking & Chewing →

Persistent paw licking or chewing — almost always allergies, sometimes boredom or anxiety.

Ear Scratching & Head Shaking →

Frequent ear scratching, head shaking, or ear rubbing — usually infection, allergies, or mites.

Limping →

Favoring a leg, reluctance to jump, or stiffness — could be joint, injury, or paw issue.

Bad Breath (Halitosis) →

Strong or foul breath in dogs usually signals dental disease, sometimes GI or kidney issues.

Excessive Panting →

Panting beyond what makes sense for temperature or exercise — can signal heat stress, pain, anxiety, or heart issues.

Loose Stool & Diarrhea →

Soft or liquid stool — dietary indiscretion is most common; chronic cases point to food sensitivity or inflammatory disease.

Anxiety & Separation Stress →

Whining, destruction, house-soiling, or panic when left alone — a real and treatable behavioral issue.

Hot Spots (Acute Moist Dermatitis) →

Moist, red, painful lesions that appear quickly and spread fast — usually triggered by allergies, moisture, or minor irritation.

Weight Gain & Obesity →

Noticeable weight increase, visible rib disappearance, or vet-flagged obesity — the most common preventable health issue in dogs.

Coughing →

Dry hacking, wet cough, or gagging — causes range from kennel cough to heart disease to collapsing trachea.

Eye Discharge & Tearing →

Watery eyes, crusty discharge, or colored goop — common in flat-faced and toy breeds. Usually mild but sometimes signals infection.

Stiffness After Rest →

Dog is stiff or slow getting up from sleeping or lying down, then loosens up after moving — classic early arthritis signal.

Vomiting →

Throwing up food, bile, foam, or fluid — often simple stomach upset, but repeated vomiting can become urgent fast.

Lethargy & Weakness →

Unusual tiredness, weakness, or reluctance to move — a nonspecific sign that can range from mild illness to emergency.

Loss of Appetite →

Skipping meals, refusing treats, or eating much less than normal — often a sign of pain, nausea, dental disease, or systemic illness.

Excessive Thirst & Urination →

Drinking more, asking to go out more, larger urine clumps, or new accidents — classic signs that need medical workup.

Weight Loss →

Losing weight without trying, visible ribs or spine, or muscle loss — especially concerning when appetite is normal or increased.

Hair Loss & Bald Patches →

Thinning coat, bald spots, or patchy hair loss — often allergies or parasites, but endocrine disease is also possible.

Shaking & Trembling →

Whole-body shaking, tremors, or trembling legs — can be cold or fear, but pain, toxin exposure, and neurologic disease are on the list.

Scooting & Butt Dragging →

Dragging the rear on the floor or licking under the tail — most often anal gland irritation, but allergies and parasites can contribute.

Urinary Accidents →

Peeing indoors, leaking urine, or asking out more often — can be behavioral, but medical causes are common.