Oral thrush is a fungal infection of the mouth. It is not contagious and is usually successfully treated with antifungal medication. It is also called oral candidosis (or candiasis) because it is caused by a group of yeasts called Candida. Symptoms of oral thrush can include: 1  white patches (plaques) in the mouth that can often be wiped off, leaving behind red areas that may bleed slightly. 2  loss of taste or an unpleasant taste in the mouth. 3  redness inside the mouth and throat.
The estrus cycle has four stages. The first stage is called proestrus. This lasts approximately 10 days and it is during this stage that your dog will bleed from the vaginal area. This is your dog's preparation for pregnancy phase, but she will not want to mate with a male during this time.
If you have a female puppy, you'll need to be prepared for her estrus cycle. It is similar to a woman's menstrual cycle except that it only happens twice a year. She can go in heat from as early as 6 months, so watch out for the signs. Your dog can come into her first heat any time between 6 and 24 months. According to Webvet.com, small dogs come into heat sooner than larger breeds. Typically she will have two estrus cycles, or heats, a year, and each one lasts for between 18 to 24 days. She is likely to show signs that her heat is about to start by changes in her behavior. You could compare this with the kind of emotional ups and downs women go through monthly just before menstruation.