1) pulmonary edema-a build up of excess fluid in the interstital space between the alveoli and the capillary 2) pulmonary fibrosis-a build up of fibrous tissue in the interstital space 3) pneumonia-a build up of inflammatory fluid and cells in and around the alveoli.
The first day of bleeding is called the first day of heat. The duration of proestrus can vary from as little as 1 day to 21 days. Proestrus is a time of rising estrogen levels preparing the reproductive tract for breeding. Estrus: Is the period of receptivity. Behaviorally it begins the first day the bitch stands.
My female dog is now bleeding again 8 weeks after having her pups. Now I know she's suppose to bleed for awhile after having a litter when their first born but she stopped since then and just started back up again recently but this time she's bleeding a lot and its a dark color that she usually gets while she's in heat.