Chloe Rideout, 20, died following treatment at Derriford Hospital in Plymouth, Devon, in October 2018.
An inquest in Truro, Cornwall, concluded that the young woman passed away as a result of a known complication, sepsis, after a necessary surgical procedure, an appendectomy, which neglect contributed to.
Senior Cornwall coroner Andrew Cox said her family had significant concerns following her admission to Derriford Hospital on October 7.
Among the shortcomings highlighted by Mr Cox, he said that although her bloods were ordered, they were not checked or acted upon before Ms Rideout was discharged.
Had they been, he said medics would have been aware her inflammation was not under control as she was deteriorating clinically.
BBC News
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image captionThe inquest heard Chloe Rideout was a strong, fit 20-year-old woman Neglect contributed to the death of a fit and strong 20-year-old woman, an inquest has found.
Chloe Rideout, from Coverack in Cornwall, died from sepsis following a routine appendix operation in 2018.
The acting senior coroner said it was manifestly inappropriate to discharge her and there were shortcomings in her treatment at Derriford Hospital.
Ms Rideout s mother told the inquest at County Hall in Truro as parents we have been robbed of our daughter .
Sharon Rideout added: It s completely wrecked the lives of me, her dad and brother .