The 30-year-old man of Zhongshan, who was not identified, said that he was sitting on the toilet for about 30 minutes trying to defecate on Sunday night.

Bored

The man was bored so he decided to play games on his cellphone. After 30 minutes, he felt a large mass sticking out of his behind.

The man rushed to the Sixth Affiliated Hospital of the Sun Yat-sen University to seek treatment.

Rectal prolapse

Dr. Su Dan, who treated the patient, said that the man suffered from rectal prolapse since he was a young child.

Part of his rectum occasionally fell out of his bottom but it always retracted. However, this time was different.

Dr. Dan said that she believes sitting on the toilet for so long aggravated the condition and caused 6 inches of his rectum to detach from his body.

Surgeons removed part of his rectum and he is recovering.