I love my Lucy (black golden doodle)! I was startled when a friend of mine told me about her black standard poodle that died of toe cancer (yes, I know it sounds silly). The research shows that large breed black dogs are at risk. The following is a brief article I wanted to share with you so that you can be aware of the seemingly benign symptoms!
"Nail-Bed Squamous Cell Carcinoma (SCC) Digital SCC is a malignant tumor that originates in the nail-bed epithelium. Most dogs with SCC of the digit are examined because of a sore toe. Limping, swelling, bleeding/discharge, ulceration, and breaking or splitting of nails are also common complaints. SCC tumors in many dogs were preceded by chronic nail-bed infections.
Black, large breed dogs such as Labrador Retrievers, Giant Schnauzers and Standard Poodles appear to be predisposed. In these breeds, multiple digits may be involved over a course of two to four years. Each toe affected is a primary tumor, and not metastases from another digit.
Squamous Cell Carcinoma of the digit is locally aggressive, and "lysis" (erosion and deterioration of bone) is evident on X-rays about 80% of the time. Amputation of the digit is necessary to prevent SCC from spreading to adjacent lymph nodes and major organs.
Average age at the onset of SCC is nine, but Standard Poodles as young as four have been reported. Diagnosis is confirmed by histopathology of the affected digit."
(see
http://flickr.com/photos/9197427@N06/2720797121)