Bathing has always been a key concern for all PICC patients with tubes. In order to keep the local skin of the puncture site dry and airtight, you should choose shower or scrub bath, and avoid tub bath, sauna or sweat steam. 1, first to the puncture point as the center of the puncture site and its surrounding skin wrapped with plastic wrap; 2, and then a thinner small towel wrapped around the outside; 3, and then in the small towel wrapped around 2-3 turns of the plastic wrap; 4, and finally on the upper and lower edges of the plastic wrap with adhesive tape to tighten; Immediately after the shower to observe the film with or without water, such as water, in a timely manner, go to the hospital to replace the film, it is recommended that the patient weekly catheter maintenance one day before bathing.