Why Does My Dog Wag Its Tail When It Sees Me. According to Lynn Buzhardt DVM a veterinary consultant for VCA Animal Hospitals dogs will often wag their tails if they feel threatened anxious insecure interested curious or friendly. Best answers Its commonly believed that dogs wag their tails to convey that they are happy and friendly but this isnt exactly true. A wagging tail does not always mean the dog is friendly. You should not expect your dog to wag its tail because that will cause your dog to get excited and excitement most of the times can cause and mean stress.
If you watch your dog run and turn a corner you will see his tail swing to the side to balance out his action. Some cunning canines use this belly-up posture with tails wagging side to side to lure unsuspecting people for growl or even worse bite attacks. It also depends on the type of barking. If a dogs tail is mostly wagging to their right and is at or lower than its normal position then the dog is saying Hey Im happy. The tail may be low and wagging slowly usually because the dog is hesitant about something. But if the tail is wagging to the left and especially if its at or higher than its normal position then the dog is saying Bring it.
This discomfort can be a precursor to aggression.
If you watch a dog take a tight turn at high speed you will likely see him use his tail for stability The tail is also one component of the body language dogs use to communicate along with facial expressions and body postures. Some cunning canines use this belly-up posture with tails wagging side to side to lure unsuspecting people for growl or even worse bite attacks. Growls come in different durations and pitches. Or the dogs tail may be held high and moving back and forth narrowly but rapidly. If your dog does wag its tail sometimes it would also help to consider what is different when your dog does wag its tail. Sometimes the dogs tail wags so fast that it appears to vibrate.