In the morning, there is a lot of blood when you suck saliva hard, it may be that there are dental or periodontal diseases in the mouth, or it may be triggered by the body’s coagulation dysfunction. 1. Dental disease: when the teeth appear caries triggered pulpitis or apical periapical inflammation, due to the pulp cavity and the oral cavity is connected to the attraction of the pulp cavity can appear bleeding symptoms, the general teeth can appear spontaneous pain or occlusal pain. 2. Periodontal disease: when oral hygiene is not clean, tartar accumulation, periodontal inflammation can occur, resulting in red, swollen gums bleed easily. 3. Coagulation dysfunction: when there are blood systemic diseases such as hemophilia, due to coagulation dysfunction, gums can also appear easy bleeding symptoms. In the morning, sucking hard on saliva with blood, may also be taking aspirin and other anticoagulant drugs or certain diseases, such as hypertension caused by, it is recommended to go to the hospital in time to check and deal with.