4 sentences

1. 可能是膀胱感染。

   kě​néng shì páng​guāng gǎn​rǎn.

   It could be a bladder infection.

   Source: OpenSubtitles

2. 膀胱是人体储存尿液的器官。

   páng​guāng shì rén​tǐ chǔ​cún niào​yè de qì​guān.

   The bladder is the organ in the human body that stores urine.

   Source: Dong Chinese Dictionary

3. 医生将导管插入了手术后患者的膀胱。

   yī​shēng jiāng dǎo​guǎn chā​rù le shǒu​shù hòu huàn​zhě de páng​guāng.

   The doctor inserted a catheter into the patient's bladder after surgery.

   Source: Dong Chinese Dictionary

4. 细菌可能会通过尿道进入膀胱引起感染。

   xì​jūn kě​néng huì tōng​guò niào​dào jìn​rù páng​guāng yǐn​qǐ gǎn​rǎn.

   Bacteria can enter the bladder through the urethra and cause an infection.

   Source: Dong Chinese Dictionary