This could be due to a problem with the anal glands being impacted or infected which you can read about here
http://www.marvistavet.com/html/body_anal_sacs.html
This might also be due to a swallowed non food item that he cannot pass and that is irritating the rectum area as well as blocking it leading to the bleeding.
If he is not neutered this could be a problem with the prostate blocking the rectum and the bleeding would be from him being unable to pass stool.
I'd plan a vet check up for him.
Just so you can see the anatomy here is a diagram
http://www.vetmed.wsu.edu/ClientED/anatomy/dog_ug.aspx#lower%20urinary%20and%20genital%20tract
it doesn't show the anal glands but you can see if the prostate swells the rectum could be blocked.
Hope this helps you!
Dogs do not really get hemrrhoids but they can have a telescoping of the intestinal tract or if you see a red circle outside the anus a prolapse of the rectum.
If he is not passing stool at all and its been more than a day I'd be concerned enough to see if your vet has an emergency opening to check him over.
But if he is eating for you then you could try some high fiber food such as oatmeal or plain canned pumpkin - a spoon or two - added to his meal.
For the sore area outside the anus you can use neosporin or triple antibitoic ointment on it and that won't hurt him if he licks it.
Dog Expert:Rescue, Train,Breed,Care
30+ yrs dog home vet care & nursing, rescue, behavior&training, responsible show breeding, genetics
You had mentioned the rug burn which is why I told you about the ointment
You might try isolating him to see if he is pottying OK maybe give him a private space overnight with his own pee pad?
Hopefully the pumpkin will work!
Thanks for the above accept!
That is great news - glad he is feeling better!
You might try keeping up with some pumpkin for all of them every week for a meal just to see if that will help keep the anal glands cleared with the high fiber poops.
Thanks for updating me!
Giardia can be tough to deal with.
Be sure to disinfect (a drop or two of bleach when you wash them and rinse well) the water bowls.
And as they go out in your yard you can use a hose end applicator to spray 1 part bleach to 30 parts water to disinfect the soil without impacting any plants in the yard.
You can read up on giardia here
http://marvistavet.com/html/giardia.html
thanks for the update - if they had all had upset when we talked I'd have suspected parasites as a possibility because usually if one has them they all do.