Overview
The Maltese technically has hair and not fur. Just about every dog breed, can encounter many fur/hair issues. Some are minor and some quite major.
One of the most common issues is a loss of the coat. The Maltese does not shed, a trait not found in most breeds. Therefore, a thinning or loss of coat is a sign of a problem.
Coat issues (and skin issues) happen for a variety of reasons, including allergies and medical illness.