A woman has been diagnosed with a type of hearing loss which means she can’t hear the voices of men – only women.
The patient, who has only been identified by her surname, Chen, woke up to find she was unable to hear her boyfriend.
Ms Chen, from the city Xiamen, on the east coast of China- 416miles (716km) away from Hong Kong, went straight to the hospital.
Doctors tried to figure out her bizarre symptoms, which were the opposite to more common forms of hearing loss, according to local reports.
A specialist diagnosed her with reverse-slope hearing loss, in which she could only hear high frequencies.
The condition is believed to affect only one in nearly 13,000 patients with hearing problems, according to figures.
It was possible that stress may have contributed to the condition, the doctors said.
Ms Chen reportedly had been suffering from nausea and ringing in her ears the night before her ordeal.