Hi and welcome to Healthcaremagic.
First, if your husband is aged over 50, he should do red blood count and occult blood stool to see if there is
anemia present. If this is present then he must do both colonosocopy and gastroscopy to rule out some serious isses.
Second, if these tests are negative then the cause of bleeding is probably hemorrhoids,
anal fissure or rectal polyps. These are primarily treated with
stool softener, diet and sitzbaths.
It is very important to take lot of fluids, probiotics, high fibre food and stool softeners to avoid hard stool and straining. If there is no improvement in next few weeks, then surgical management should be considered.
Otherwise, you can see if conservative therapy will help.
Also, if there is
rapid weight loss,then coonosocpy must be done since this is nonspecific sign of possible tumors.
I hope I have answered you query. If you have any further questions you can contact us in every time.
Kindly regards. Wish you a good health.