My Dog Is Shaking and Can't Stand Up — What's Wrong?

checklist Symptoms to Watch For

The combination of shaking (tremors) and inability to stand (ataxia or weakness) narrows down the diagnostic possibilities, but the details you observe make all the difference.

• check_circleType of shaking: Is it a full-body tremor, twitching in one area, or seizure-like convulsions?
• check_circleLevel of consciousness: Is your dog alert and aware of you, or are they dazed, unresponsive, or seeming confused?
• check_circleOne side or both? Weakness on just one side of the body suggests a neurological event like a stroke. Weakness in all four legs points toward a systemic issue.
• check_circleOnset speed: Did this come on suddenly over minutes, or has it been gradually worsening over hours or days?
• check_circleEye movement: Eyes flicking rapidly side to side (nystagmus), one pupil larger than the other, or eyes that don't track together are strong neurological signs.
• check_circleHead tilt or circling: Classic signs of vestibular disease.
• check_circleBreathing pattern: Rapid, labored, or very slow breathing provides clues about pain, shock, or metabolic problems.
• check_circleRecent history: Has your dog eaten anything unusual? Had access to garbage or toxins? Been in extreme heat? Had a recent tick bite?

search Possible Causes

Vestibular disease — "old dog syndrome" — is one of the more common and dramatic causes. The vestibular system controls balance, and when it malfunctions, the dog experiences what feels like severe vertigo. They may have a pronounced head tilt, their eyes may flick rapidly (nystagmus), and they often cannot stand without falling over. The good news: idiopathic vestibular disease, while terrifying to witness, often improves significantly within 72 hours and resolves over weeks. It is most common in older dogs.

Seizures don't always look like the classic convulsions you see on TV. During a seizure, a dog may stiffen, shake, lose consciousness, drool, and lose control of their bladder or bowels. After the seizure ends, there is a "post-ictal" phase where the dog may be disoriented, temporarily blind, restless, and unable to stand properly. This can last minutes to hours.

Toxin ingestion is always a top concern. Xylitol (in sugar-free gum and some peanut butters), chocolate, marijuana, certain plants (sago palm, foxglove), snail bait (metaldehyde), rodenticides, and human medications can all cause tremors, seizures, and collapse. Marijuana toxicity in particular has become increasingly common in areas where it is legal — dogs present with dribbling urine, a dazed appearance, and a characteristic "drunken" walk before they lose the ability to stand entirely.

Hypoglycemia — low blood sugar — is especially dangerous for small-breed puppies, toy breeds, and dogs on insulin for diabetes. Signs include shaking, weakness, disorientation, and in severe cases, seizures and collapse. Rubbing a small amount of honey or corn syrup on the gums can be a life-saving first-aid measure while you head to the vet.

Intervertebral disc disease (IVDD) is common in Dachshunds, French Bulldogs, Corgis, and other long-backed breeds. A ruptured or bulging disc compresses the spinal cord, causing pain, weakness, shaking, and paralysis of the hind legs. This is a time-sensitive emergency — the sooner treatment begins, the better the chance of regaining function.

Addison's disease (hypoadrenocorticism) is a great imitator that can cause episodic weakness, shaking, collapse, and gastrointestinal signs. It occurs when the adrenal glands don't produce enough cortisol and aldosterone. An Addisonian crisis can be fatal without prompt treatment.

Tick paralysis from certain tick species causes ascending paralysis — the dog becomes weak in the hind legs first, and the weakness progresses forward. Removing all ticks often leads to rapid improvement.

Heatstroke causes collapse, shaking, rapid panting, bright red gums, and sometimes seizures. This is an extreme emergency requiring immediate cooling and veterinary care.

home Home Care Tips

Honesty first: a dog who is shaking and cannot stand needs to see a veterinarian. This is not a wait-and-see situation. However, while you are getting ready to go — or if you are waiting for a telehealth callback — a few actions can help:

• check_circleKeep your dog calm and still. Place them on a padded, non-slip surface in a quiet, dim room. Minimize noise and stimulation. If you suspect a spinal injury, use a flat board as a stretcher to move them.
• check_circleCheck for obvious hazards — remove any chewed-up packaging, plants, medication bottles, or garbage from the area and bring them with you so the vet knows what your dog may have been exposed to.
• check_circleFor suspected hypoglycemia: If your dog is conscious and able to swallow, rub a small dab of honey, maple syrup, or corn syrup onto their gums. Do not pour anything into the mouth of a dog who is seizing or unable to swallow — they could aspirate.
• check_circleFor suspected heatstroke: Move the dog to shade or air conditioning. Wet them with cool (not ice-cold) water, focusing on the groin, armpits, and neck. Do not wrap them in wet towels, which trap heat. Offer water if they are alert enough to drink. Get to the vet immediately — cooling alone is not enough.
• check_circleRecord a video on your phone if the shaking or abnormal behavior is still happening. Showing your vet what the episode looks like is far more useful than trying to describe it.
• check_circleDo not give any medications — including pain relievers, anti-anxiety meds, or anti-seizure drugs — without veterinary instruction. Many human medications are toxic to dogs.

local_hospital When to See a Vet

This entire symptom set — shaking plus inability to stand — is a veterinary emergency. Go now. Particular urgency applies if:

• check_circleYour dog is completely unable to stand or walk.
• check_circleThe episode came on suddenly with no obvious explanation.
• check_circleYour dog loses consciousness, even briefly.
• check_circleBreathing is labored or abnormal.
• check_circleGums are pale, white, blue, or brick red.
• check_circleYou know or suspect toxin exposure.
• check_circleYour dog has a known medical condition like diabetes, epilepsy, or heart disease.
• check_circleThe dog is a Dachshund, Corgi, or other breed prone to IVDD and shows hind-leg weakness.
• check_circleThere has been no improvement after 10–15 minutes, or the condition is worsening.