Blood in poo

[BlueandJackson]

My whippet Jackson keeps having blood in his poo. Not every poo and not every day but a you'd amount of them have drops of fresh blood next to them. He's been to the vets, they said colitis, gave him injection of anti inflammatory and a syringe of probiotic paste stuff to settle his stomach. But it's not fixed it. I'll try and get him booked in tomorrow but why ideas? He's fine in himself, but he's a skinny boy just under 10kg even though we try and feed him up.
He's also one of those dogs who does a poo or 2, out on a walk, then does several more phantom invisible poos (which you have to act like you're picking up even though there's nothing)... Is he just straining too much or does he have a sensitive stomach?

 

[JoanneF]

Is it possible he has a little tear around his anus and it opens when he is straining, so the blood isn't actually in the poo, but rather getting on it when he does it? Has your vet tested the poo for blood through it rather than just on it iykwim?

 

[Whippylove]

My Marley has suffered bouts off colitis since he was a pup he's 6 years now. What your describing, pooing with nothing coming out and the odd poo with blood in it sounds what Marley goes through. I usually get antibiotics and steroid jag for him to clear it up. What do you feed? Marley's mostly comes from something he shouldn't have ate. Maybe get a poo sample for the vet, we did that just to make sure there wasn't something we were missing.
I hope it settles as it's not nice for them. I hope everything goes well at the vet's.