LABS ARE BIG, ACTIVE DOGS, but sometimes an injury or illness can lay them low. Most dogs at some point will itch and scratch from allergies, hot spots, or flea bites, suffer the unpleasantness of diarrhea or vomiting, or develop lumps or bumps that should be checked out. Being the outdoor athletes that they are, Labs are also prone to such injuries as broken toenails, cuts and scrapes, or ruptured cruciate ligaments. Knowing what to expect and what to do about these potential problems will help you recognize and deal with them when they occur.