Blood in the teeth in the morning, usually is the phenomenon of bleeding teeth after waking up, most of them are caused by periodontal disease, which is often said to be caused by too much tartar stimulating the gums, patients need to go to the regular hospital oral periodontal disease department for professional periodontal treatment in a timely manner. Dental scaling, which is often referred to as scaling, should be performed. After scaling, the symptoms of bleeding gums and periodontal bleeding will be alleviated, and if some patients still have blood in their teeth after scaling, then professional dental scaling, root planing, and gum flaps will be required. At the end of the treatment, should be in the periodontal pocket, on some drugs to assist the therapeutic effect, the drug can choose to use Pailio, also known as minocycline hydrochloride ointment to promote the recovery of the gums.