The magical way of washing underwear

"Is there a problem with the patient?" Zheng Ren asked with a frown.

"I didn 't." The doctor on duty last night was also stunned for a moment. He had slept very well last night. Before he went to bed, he checked all the wards. All the patients were in a stable condition and there were no problems at all.

Afraid that boss Zheng's assistant would ask about some tricky and strange things, the doctor on duty got up early in the morning and walked around the wards again before boss Zheng made his rounds.

The doctor on duty quickly followed the sound and ran over.

Zheng Ren could tell that the voice did not come from the ward but from the bathroom.

Did the patient's liver - related cerebral disease act up?