Chen woke up unable to hear her boyfriend's voice. COURTESY OF PHOTOS: WIRE OF ASIA
A woman has been diagnosed with a type of hearing loss, which means that she can not hear the voices of men – only women, Mail Online reported.
The patient, who was only identified by the surname Chen, woke up and found she could not hear her boyfriend.
Chen, from Xiamen City on the east coast of China – 416 miles (716 km) from Hong Kong, went straight to the hospital.
Doctors tried to discover its bizarre symptoms, which were the opposite of the most common forms of hearing loss, according to local reports.
A specialist diagnosed her with an inverted tilt hearing loss, in which she could only hear high frequencies.
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ºIt is believed that the condition affects only one in almost 13,000 patients with hearing problems, according to figures.
It's possible that stress has contributed to the disease, doctors said.
Chen supposedly suffered from nausea and buzzed in his ears the night before his ordeal.
She believed that a good night's sleep would solve the problem and go to bed with her boyfriend.
But the next morning, she was shocked to find that she could not hear her partner talking.
She ran to the Qianpu Hospital in the city, where she was seen by an ear, nose and throat specialist.
Reports state that she was able to hear every word of the female ENT, according to Dr. Lin Xiaoqing, who treated her.
"She was able to hear me when I spoke to her, but when a young patient came in she could not hear him," Xiaoqing said.
She diagnosed her with "low frequency hearing loss" or inverted tilt hearing loss, explaining why she could not hear deeper sounds.
This condition is usually difficult to diagnose because both physicians and patients may not be aware that it exists.
It can be caused by genetics, meaning people have never been able to hear lower sounds – like the humming of a refrigerator.
The patient revealed that she was working late recently, putting the body under stress and not getting enough sleep.
Dr. Xiaoqing believes that the fatigue and additional stress of the long days may have contributed to this condition.
The otolaryngologist has revealed that it is important to treat these symptoms quickly and said she hoped Chen would recover completely.