Q. About a month ago my son-in-law started taking one regular Bayer aspirin each morning and one Bayer PM before going to sleep. Two weeks into this regimen he started bleeding from the mouth while he was sleeping. He stopped taking the aspirin and the bleeding stopped as well. Is this a possible side effect?
A. Aspirin can thin the blood by interfering with the sticky part of blood called platelets. Some people are especially susceptible to this effect so even a standard dose might trigger bleeding.
