: "A bitch will usually come into heat between 6-12 months. Then after, they will usually come into heat every five to nine months. The heat cycle is specific for each individual dog."
It should be clarified that this only really applies to small and medium breeds! I've routinely had Akitas of different lineage that would go into their first heat cycle around 17 months. I know it sounds odd and yeah, sure it's not all that common, but occurs and is certainly not out of the norm. On going research is showing that a bitch of a large-giant breed dog can go into heat for the first time as late as 22 months! So, relax and if you're worried about your late bloomer, take her to the vet to confirm she's healthy and they may be able to induce her heat cycle.
jm2c
OH, also, my Black Russian Terrier bitch is now 14 months old and shows NO indication of going into season any time soon. Thought I'd mention that! And no, there's no way in h3ll that she's had a "silent heat" and I've missed it. None at all.
