The common causes of blood in sputum in the morning, but not during the day are chronic rhinitis, chronic pharyngitis and bleeding gums at night. Commonly used treatments include relieving nasal mucosal congestion, eliminating inflammation and cleaning gums. 1. Chronic rhinitis: Because the nasal cavity is connected to the throat, if chronic rhinitis patients get up in the morning, nasal mucosa congestion, caused by the distribution of capillary rupture in the nasal mucosa bleeding, may appear to cough up bloody sputum. You can use nasal sprays such as seroquel hydrochloride nasal spray and hydroxymetazoline hydrochloride spray that can reduce nasal mucosal congestion to relieve nasal congestion. 2. Chronic pharyngitis: patients with chronic pharyngitis, the mucous membrane of the pharynx will be congested, ulceration and other damage, resulting in bloody phlegm in the throat. Symptoms can be relieved by drinking plenty of water, quitting smoking, and using medications such as Golden Throat Container Tablets and Cediriodine. 3. Bleeding gums at night. Gums bleed at night because of calculus buildup, and the sputum you spit out in the morning will be mixed with blood, but not during the day. At this time, you need to take dental scaling, supragingival scaling, subgingival scraping and other ways to remove local irritants. Always get up in the morning sputum with blood, but not during the day, may also be related to other diseases, you need to go to the hospital to find out the cause, do not delay, so as not to delay the condition. The above medications should be used under the guidance of a physician.