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R. Kelly's lawyers filed court papers begging for his release from prison after his health deteriorated behind bars.

The R&B singer/songwriter is reportedly suffering from a hiatal hernia and his physical condition is deteriorating.

A hiatal hernia is an opening in the diaphragm that allows the abdominal organs to protrude through the diaphragm into the chest. The condition can be fatal if not treated by a surgeon.

Every prison has medical staff and psychiatric staffs to treat patients. But a hiatal hernia can not be treated in jail.

Lawyers for the jailed singer have filed new documents in an effort to get their client the medical help he needs behind bars.

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In court documents, obtained by TMZ, the lawyers asked a judge to allow Kelly to be released on house arrest, where his physical condition would improve.

They also assured the judge that the "I Believe I Can Fly" singer will not intimidate witnesses if he is released and they insist he is not a flight risk, because he doesn't currently have access to his passport.

Kelly, 52, was arrested in Chicago earlier this year and charged with 18 new counts, including child sexual exploitation, child pornography production, kidnapping, forced labor, racketeering, and obstruction of justice.

He is also wanted on similar charges in New York and Minnesota.

In August, a Minnesota prosecutor charged Kelly with soliciting a minor and prostitution.

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R. Kelly got his wish to be moved from solitary confinement to general population in an Illinois federal lockup.

The troubled singer/songwriter was arrested on July 11 and charged with child sex abuse, child p0rnography and obstruction of justice.

U.S. District Judge Harry Leinenweber granted Kelly's lawyer's request to move Kelly to general population at a federal jail.

Kelly had complained that he was bored and unfairly being held in solitary confinement.

But jail officials argued that Kelly previously refused to move to general population. They also noted that he had a cellmate for several weeks after initially refusing a cellmate.

Kelly's attorneys are still asking a judge to reconsider a ruling that he be held without bail until his trial next year.

Kelly's former live-in girlfriends Azriel Clary, 21, and Joycelyn Savage, 23, are raising funds to hire high-powered attorney Tom Mesereau, who successfully defended Michael Jackson.

Kelly's current attorneys want him moved to a "secure facility" with Clary and Savage as his roommates.

His trial is scheduled for April 2020.