One of the biggest concerns is that the dog’s fur becomes very thin, revealing their sensitive skin. This means they can easily get sunburned. Unlike people whose skins normally develop melanin to help guard against the sun’s effects, dogs rely on their fur to protect their skin.
A positive side is that shaving eliminates an extra layer of fur that can keep heat in, rather than out, since it can accumulate dirt and debris. The extra fur and dirt in it can act as a barrier, keeping natural body heat in.