ARTICLES

The symptoms of a dog's first heat are the same as any other heat and include swelling of the vulva and bloody vaginal discharge. Female dogs may urinate more frequently when in heat or develop other behavioral changes.

www.reference.com/pets-animals/symptoms-female-dog-s-first-heat-d033ce10ec2db2ec

Although the heat cycle varies from breed to breed and in individual dogs, the average time a female dog is attractive to male dogs (or in heat) is 18 days. Most females are attracted to males for less time than that.

www.reference.com/article/long-female-dog-heat-357b5e3ffb61d59d

The frequency and length of time a dog goes into heat varies by breed, but is approximately twice a year for about 18 days. Although the heat lasts this long, the female dog is typically only open to mating for about nin...

www.reference.com/article/long-female-dog-stay-heat-6fa0b24aaf33a92e

SIMILAR ARTICLES

Early signs that a dog may be in heat are a red discharge from the vulva, licking that is excessive, changes in behavior or appetite and an increase in temperature. The beginning phase of a dog’s heat cycle is called pro...

www.reference.com/article/signs-dog-heat-d48a222c22a9c76c

Female dogs spend 2 to 3 weeks in heat and a bloody discharge is present only for the first 10 days, says VCA Animal Hospitals. The bloody discharge fades to a clear or watery discharge as the heat cycle progresses.

www.reference.com/article/long-dogs-period-cf4e34390d0c2ffa

In the early stages of distemper, a high fever and nasal and eye discharge occur, along with vomiting, diarrhea and dehydration. Once this early stage has passed, the dog may seem to be getting better. The second stage c...

www.reference.com/article/symptoms-distemper-dogs-cafb345d7451c913

A feline with an upper respiratory infection can present symptoms such as sneezing, congested nose, nasal discharge, eye discharge and conjunctivitis, states VCA Hospital. Depending on the specific cause for the infectio...

www.reference.com/article/symptoms-cat-respiratory-infection-2445ca84348b159e