Seeing your dog shake or tremble is unsettling, especially when you can't work out why. Sometimes it's completely harmless; other times it's a sign your dog is frightened, cold, or unwell. Here's how to read the situation and what you can do to help.
Common reasons dogs shake
- Cold. Small, thin-coated and senior dogs feel the cold quickly — shivering is the body warming itself.
- Excitement or anticipation. Some dogs tremble with sheer excitement (dinner, walk, you coming home). Harmless.
- Fear and anxiety. This is one of the most common causes — thunderstorms, fireworks, car trips, vet visits, or being left alone. You'll usually see other signs too: panting, pacing, hiding, ears back, a tucked tail.
- Pain or illness. Trembling can signal pain, nausea or other medical issues — especially if it's new, constant, or paired with other symptoms.
- Old age. Older dogs sometimes develop tremors, particularly in the legs.
How to tell anxiety from something serious
It's probably anxiety if the shaking lines up with a trigger (a storm rolling in, the car, guests arriving) and comes with classic stress signals — panting, pacing, hiding, drooling, a tucked tail — then settles once the trigger passes.
Call your vet if the trembling is sudden and unexplained, constant, or comes with vomiting, diarrhoea, lethargy, loss of appetite, weakness or collapse. When in doubt, get it checked — it's always worth being sure.
How to help an anxious, trembling dog
- Stay calm yourself. Dogs read our energy. Speak softly and act normally — fussing too much can accidentally confirm that something's wrong.
- Give them a safe place to retreat. A quiet, enclosed spot like a den-style calming bed or covered crate helps a frightened dog feel protected.
- Try gentle pressure. A snug wrap applies calming deep-touch pressure — like a weighted blanket for dogs. A pressure wrap can help take the edge off during storms, fireworks and travel.
- Reduce the trigger. Close curtains and play calm background noise during storms or fireworks to muffle the flashes and bangs.
- Add a calming signal. A calming diffuser in the room can help create a more relaxed environment, especially for ongoing or home-alone anxiety.
The bottom line
Occasional shaking from cold or excitement is usually nothing to worry about. Fear-based trembling is very manageable with a calm approach, a safe space, and the right calming tools. But trust your gut — if something feels off, or the shaking is new and unexplained, check with your vet.
For everyday help with an anxious dog, browse our Calm & Anxiety Relief range or get in touch and we'll point you to the right starting place.
General information only, not veterinary advice.