Doctors in India have removed a hairball weighing nearly the same amount as two bags of sugar from a teenager.
The 19-year-old woman, from Rajgarh in Madhya Pradesh, reportedly had the habit of eating her own hair and chalk in the classroom.
It is believed the hair became wrapped around a chalk wedged between the girl's stomach and duodenum, the first part of the small intestine.
The blockage left the youngster unable to eat or drink for several days.
By the time the hairball was removed by surgeons, it weighed 1.8kg.
The operation at the Maharaja Yeshwantrao Hospital in Indore is said to have been successful.