what age do female have their first heat? - Page 1

if a female doesn't have a heat period before she is 11 months old, is something wrong with her?

normally first heats come between 6-12 months, usually around 8-9 months is the norm.  12 months isn't unusual - more likely she had her first heat and it was very mild (very little blood which she may have kept clean, very  little swelling if at all) - and you may have missed it.  That is normal too :)

molly

my female got her first heat at 9 months. but it lasted about 21 days. i think 11 months is still normal. some even come much later.

I had one that didn't come into heat until she was just about 13 months.  After that she was every six months as regularly as you please.  Never a health issue about her.

Mine had her first heat just before 12 mos. 

 if a bitch is 14 months old and hasn't had one, is it time to go to the vet? or still wait and see? 

If the female is 14 months chances are you missed her first heat - they are easy to miss sometimes very subtle, with very little bleeding that the dog can keep clean, and very little swelling.  I know I've missed some of my dogs' first heats - not unusual.

molly

My bitch had her season and 81/2 months and we thought she had finished but she started dripping again 2 days later so her season lasted just under a month its usually 3 weeks.