Excessive panting is a common sign of heatstroke. Dogs regulate their temperature through panting, but when it becomes rapid and heavy, it's a red flag.
Restlessness and an inability to get comfortable are warning signs. If your dog is unable to settle down, it could be due to heat-related distress.
Heatstroke can cause dogs to drool excessively. Their saliva may become thicker and more copious than usual.
Digestive issues, such as vomiting and diarrhea, can occur when a dog is overheated and suffering from heatstroke.
A noticeably elevated heart rate is a serious sign. If your dog's heart is beating too fast, it's a medical emergency.
Check your dog's gums; if they appear bright red, it can indicate heatstroke. Healthy gums should be pink.
Heatstroke can lead to weakness or collapse. If your dog is unable to stand or walk, seek immediate medical attention.