Dogs by nature are very inquisitive in nature and are always on the lookout to find anything adventurous or meaningful for themself. They at times can inhale any of the foreign materials and objects that they can find in and around the house. These foreign materials can sometimes get lodged into their airways. The sudden coughing or any violent form of coughing that may sound like gagging is primarily in these scenarios. They try to throw out the foreign materials and during these attempts of theirs they start coughing. These can also include the possible attempts of swallowing the objects completely to get rid of the irritation that the pet faces. Another sign that can help you identify the choking is the frequent lip-licking by the pets. If you see anything like these you should understand that there is something stuck in their throats. Be cautious about such instances, as choking can be very dangerous for pets. It can be life-threatening for the pets if you do not take steps when it aggravates. You can contact your veterinarian if you are unable to control the same by yourself.