How often do Chihuahuas come into season and how long does it last each time ?

Answer by  outlaw (177)

Most females go into season the first time around 6 to 9 months, then every 6 to 8 months thereafter. You can expect their cycle to last about 21 days.

Answer by  Erica95 (323)

Most female dogs come into heat every 6 to 8 months and it will last about 3 weeks. It is not unusual for a dog to be in heat twice a year.