The most common health issues are luxating patella and tracheal collapse. More rarely, the breed can have Alopecia X, a skin condition colloquially known as 'black skin disease'. This is a genetic disease which causes the dog's skin to turn black and lose all or most of its hair. As of 2013, in terms of registration figures, since at least 1998, the breed has ranked among the top fifty most popular breeds in the US, and the current fashion for small dogs has increased their popularity worldwide. In Pomeranians, a condition often called 'black skin disease' occurs which is a combination of alopecia (hair loss) and hyperpigmentation (a darkening of the skin). Other names for this condition include woolly coat, coat funk, pseudo-Cushing's disease, or severe hair loss syndrome. This condition affects male Pomeranians more than females, and may be inherited.
luxating patella|tracheal collapse.|Alopecia X, Alopecia X,
luxating patella|tracheal collapse.|Alopecia X, Alopecia X,