13 month old boxer sill has not gone into heat

Question
Hello,
  My 13 month old female boxer still has not gone into heat.  She is up to date on her shots and has been a healthy dog.  She has showed no signs of going into heat.  Should I be worried?  Should I take her in to be seen by our vet?

Answer
Hi. I wouldn't be too worried yet. I've had females who didn't go into heat until they were two years old, and then only went into heat once a year. Every girl is different, and so is their heat cycle. I'd wait her out. If she doesn't go into heat by two years of age, then I would take her in for a check up to have a few things tested to make sure everything is ok. I love girls like this, who wait until they're older to go into heat. :-) It's best to wait until they're at least two years old to breed anyway, so when you get a girl like this, you don't have to mess with many heat cycles waiting until she's old enough to breed! I wouldn't worry yet. You still have plenty of time.