My husband be bleed from his butt and when he strain it feels like something eating his insides. can hemorrhoids do this?

No: He should see a doctor immediately. An anal fissure, or tear, can cause severe anal pain with bleeding.; however, more serious problems, like cancer, can present the same way. Your husband needs to see a doctor and have a colonoscopy immediately.

Maybe: Need to see doctor to be evaluated with an endoscopy and colonoscopy to make sure nothing else serious is going on.