If your dog gets out of your yard he could get lost or hurt so you need to take care to prevent escapes.  He may want to get out of the yard to play with dogs or children, mate or he is bored. Check the perimeter fence for any breaches. Your dog may try to dig under the fence so look for evidence of digging. You may need to place additional wire fencing or cinder blocks to prevent digging. Make sure to fill in any holes. The gate should be closed and locked at all times. Insist all family members follow this important rule. Give your dog fun things to do while in the yard. Toys and balls are fun. Consider setting up a ramp or tunnel to play with and get out there and play with your dog. Never leave him alone in the yard for long periods. For more information, contact your veterinarian Riverside County CA.