I agree--the first thing to do is have your dog examined by a veterinarian. Your veterinarian will test your dog's urine to look for infection--this can be a common cause of bloody urine and inappropriate urination. Infection can be the primary culprit or can be a secondary finding to another disease.
Bloody urine can also be caused by bladder stones and kidney infections.
The increased thirst may be secondary to an infection but can also be seen with kidney disease, diabetes, liver disease, a hormonal disease called Cushing's, and several other less common things.
Pending the urinalysis results your veterinarian may want to run blood tests to rule out these other diseases.
Hope this helps!
Bloody urine can also be caused by bladder stones and kidney infections.
The increased thirst may be secondary to an infection but can also be seen with kidney disease, diabetes, liver disease, a hormonal disease called Cushing's, and several other less common things.
Pending the urinalysis results your veterinarian may want to run blood tests to rule out these other diseases.
Hope this helps!