After lung segmental resection, if there is still blood and water coming out of the intubation wound after removing the stitches, it is very likely that the local tissues have not grown well, and it is necessary to timely anti-infective treatment, and to change the medicine and receive infrared irradiation on a regular basis, so as to promote the recovery of the wound. 1. Anti-infection treatment: after the removal of the intubation port of the lung segment resection, there is still blood and water, you need to follow the doctor’s instructions to use penicillin or cephalosporin antibiotics for infusion treatment, to prevent the local tissues from pus and other bacterial infections. 2. Regular medication change: after this situation, you need to change the local medication every 1 or 2 days, you can use hydrogen peroxide or povidone-iodine and other disinfectants to rinse and disinfect under the guidance of the doctor. 3. Infrared irradiation: Infrared irradiation can effectively inhibit the bacterial infection of local tissues, and can also make the local congestion and edema gradually dissipate, which can promote the healing of the wound tissue. If there is still blood and water coming out of the cannula after lung segmental resection, active treatment and treatment must be carried out, and at the same time, attention should be paid to a light diet, and it is best to rest in bed and actively observe in order to promote the recovery of the wound.