My Husband Went To The Bathroom And The Water Was

my husband went to the bathroom and the water was bloody, no pain, he is on a blood thinner and he bleeds very easy if scraps his arm when working out side, he has an appointment with his cardiologist in the am for a six months check up, he has stents in the artery of his heart about 10 years ago, I am very concerned should I insist on him to go to the hospital.