29/04/2026
The term “mild” is used constantly in both human and veterinary medicine. Mild arthritis. Mild disc disease. Mild inflammation. On paper, it sounds reassuring. It suggests something small, manageable, perhaps even insignificant. But when it comes to pain, “mild” means almost nothing.
Pain is a subjective, individual experience shaped by the nervous system, emotional state, environment, and prior history. A “mild” finding on a scan can exist alongside severe, life altering pain. Equally, a “severe” diagnosis may present with very little outward discomfort. For example, “mild disc protrusion” describes the degree of displacement, not the impact it is having on the individual.
Pain is produced by the brain after integrating multiple inputs. These include sensory input such as tissue damage, inflammation, or nerve irritation, but also emotional state, including fear, anxiety, and frustration. Environmental context plays a role, such as predictability, safety, and noise levels. Learning history matters, including previous experiences of pain or repeated stress exposure. Internal physiology is also relevant, including fatigue, illness, and hormonal state.
This is why two individuals with the same “mild” diagnosis can have completely different experiences. One may cope relatively well, while another may be overwhelmed.
In practical terms, a dog with “mild” spinal changes may react strongly to handling, show sudden behavioural changes, or become noise sensitive and easily overwhelmed. These are not disproportionate responses. They are often indicators of how that individual is experiencing their internal state.
Dogs do not report pain verbally. Instead, they communicate through behaviour. When a diagnosis is labelled “mild,” it becomes very easy to dismiss what we are seeing. People may say, “It’s only mild, so it can’t be causing this,” or assume, “It must be behavioural,” or interpret the dog as reactive, stubborn, or anxious.
Pain increases anxiety. Anxiety increases pain. Because pain is subjective and difficult to measure directly, pain trials are often one of the most informative tools available.
“Mild” means nothing if the experience is not mild.
