A TEENAGER has died from severe dehydration while she was training for a Muay Thai fight.
Jessica Lindsay, 18, from Perth, was said to be cutting weight in the run up to an amateur martial arts event when she collapsed.
She was rushed to hospital on November 10, the day before the fight.
Ms Lindsay, who was trying to reach the weigh in weight of 64 kilograms, died four days later after the hospital admission.
The teenager was healthy before the event, Channel 9 reported.
Two days prior to the collapse, Ms Lindsay wrote on social media: "Yeah nah cutting weight is sick hey"?.
The coroner is investigating the case.