The German Shepherd heat cycle is a critical stage in their development that begins when they are an adolescent and continues through adulthood. If you are a first-time owner, it is extremely important to know the ins and outs of this cycle so that you can be prepared. This complete guide will walk you through each stage so that you know what to expect and how to care for your dog during puberty. A female German Shepherd’s heat cycle usually begins when they hit puberty at around 6-12 months old. It normally lasts about 21-28 days. The total process consists of 4 different stages. A GSD will go through approximately…