They Need or Want Something
They may be asking you for food, water, or a walk. It may be because their favorite toy is stuck under the couch or they want you to throw the ball for them.
Canines often turn to whining when they are conceding and looking to reconcile after a misstep on their part.
Sometimes, due to the sheer excitement of welcoming you home, a whole host of sounds ranging from barks to squeals, and whines will chorus together as a greeting.
Boredom or Seeking Attention
Dogs are a lot like kids in this way; they complain when they feel no one is paying them attention or when they want something to do.
A common reason for a dog’s cries could be a plea for the loo. This need to relieve themselves rings particularly true for house-trained dogs as they know to go outside to do their business.