Is this part of chemo?

bryan64rose

My father-in-law started spitting up blood Friday and the cancer center told me as long as it was not a cup full it was okay! I asked why he is doing this and where is this blood coming from they said the chemo,so I was wondering if anyone else has spit up bright red blood because of chemo! It has got me worried so much I hate leaving him to even go to the store!