Dog Shortness of Breath and Shaking: Causes and What to Do
When a dog shows both shortness of breath and shaking at the same time, it can be unsettling. These two signs together may point to several different underlying issues ranging from mild to serious.
Quick Answer
Dog shortness of breath and shaking can occur together for several reasons, including fever, pain, anxiety, toxin exposure, heart problems, or low blood sugar. Because the combination may signal a serious condition, it is a good idea to observe your dog closely and contact a veterinarian if the signs do not improve quickly or worsen.
SYMPTOM TRIAGE
Answer a few questions about your dog's signs and receive general guidance on how urgently to seek veterinary care.
This tool does not diagnose conditions or replace a veterinarian.
What Can Cause Shortness of Breath and Shaking Together
Several distinct processes may produce both respiratory difficulty and tremors or shaking in a dog.
Fever. An elevated body temperature is one of the more common reasons dogs shake while breathing hard. The body shivers to generate heat when temperature is rising, and rapid breathing helps dissipate excess heat. Infections such as pneumonia or kennel cough can trigger this response.
Pain. Dogs in moderate to severe pain may pant rapidly and tremble. The source of pain is not always obvious -- abdominal issues, orthopedic problems, and muscle injuries can all present this way.
Anxiety or stress. Fear, thunderstorms, car rides, or unfamiliar environments can cause a dog to pant and shake. In these cases, the signs typically improve once the stressor is removed, though some dogs may need support to manage chronic anxiety.
Toxin exposure. Ingesting certain toxic substances -- including chocolate, xylitol, certain plants, rodenticides, or human medications -- can cause tremors and respiratory changes. This is a time-sensitive concern and warrants prompt veterinary contact.
Heart or cardiovascular problems. Congestive heart failure, arrhythmias, or other cardiac conditions may lead to rapid, labored breathing along with weakness that can resemble shaking. These conditions tend to develop more often in senior dogs or certain predisposed breeds.
Hypoglycemia (low blood sugar). This is especially relevant in small-breed puppies, toy breeds, or dogs with diabetes. A drop in blood glucose can cause trembling, weakness, and in some cases altered breathing patterns.
How to Observe Your Dog at Home
While you are deciding whether to contact a veterinarian, gather useful information by noting the following:
- Breathing pattern: Is the breathing fast and shallow, or is your dog struggling to take full breaths? Are the nostrils flaring? Is the chest or belly working harder than usual?
- Gum colour: Lift the lip and check the gums. Pink and moist is normal. Pale, blue-tinged, or very dry gums may indicate a more urgent problem.
- Shaking type: Is the shaking a fine tremor of the whole body, or does it seem limited to certain muscles? Does it stop when your dog rests?
- Other signs: Look for vomiting, diarrhoea, lethargy, drooling, confusion, collapse, or reluctance to move.
- Timeline: Note when you first noticed the signs and whether they are getting better or worse.
Record any of these observations -- they are helpful for the veterinary team when you call or visit.
When to Contact a Veterinarian
Some situations require urgent veterinary attention. Seek emergency care right away if your dog shows any of the following:
- Blue or pale gums
- Collapsed or unable to stand
- Breathing with an open mouth at rest (not panting from heat)
- Struggling to breathe with visible effort from the chest or abdomen
- Seizure-like activity or severe tremors
- Known or suspected ingestion of a toxic substance
- Signs that are worsening rapidly
For less severe presentations -- mild trembling with occasional panting, normal gum colour, and a dog that remains alert and responsive -- you can monitor for a short period and contact your veterinarian for advice if the signs persist beyond a few hours.
Frequently Asked Questions
Should I take my dog to the emergency vet for shaking and heavy breathing?
If your dog is struggling to breathe, has discoloured gums, cannot stand, or has possibly ingested something toxic, go to an emergency vet immediately. If the signs are mild and your dog seems otherwise normal, contact your regular veterinarian for guidance on next steps.
Can anxiety cause my dog to breathe hard and shake?
Yes. Stress, fear, and anxiety are common causes of panting and trembling in dogs. If the signs began during a stressful event and resolve once your dog calms down, anxiety is a likely explanation. However, if there is no clear stressor or the signs persist, other causes should be considered.
What toxins cause shaking and breathing problems in dogs?
Several substances can produce these signs, including chocolate, xylitol (a sugar substitute found in some foods and gum), certain human medications, rodenticides, and some plants. If you suspect toxin exposure, contact a veterinarian or a pet poison helpline without delay.
Can a fever cause my dog to shake and pant?
Yes. Fever is a common cause of both shaking (chills) and increased respiratory rate in dogs. The body shivers when temperature is rising, and panting helps regulate heat. Fevers in dogs may be caused by infections, immune conditions, or other inflammatory processes.
SYMPTOM TRIAGE
If your dog is showing shortness of breath and shaking, our symptom triage tool can help you assess the urgency of the situation.
Sources
- Merck Veterinary Manual: "Respiratory System Introduction" and "Fever of Unknown Origin"
- American Kennel Club (AKC): "Signs Your Dog Is in Pain" and "Poisonous Substances for Dogs"
- VCA Animal Hospitals: "Breathing Difficulties in Dogs" and "Tremors in Dogs"
- ASPCA Animal Poison Control Center: public guidance on common pet toxins
This article and the PawAI Symptom Triage tool provide general educational information only. They cannot examine your pet, make a diagnosis, or replace advice from a licensed veterinarian. Contact a veterinarian promptly if symptoms are severe, worsening, persistent, or accompanied by emergency warning signs.