Cher's request for a temporary conservatorship over her son Elijah Blue Allman has been turned down by a judge in the US.

The singer filed for the order last year due to Allman's alleged substance abuse and mental health issues.

But Los Angeles Superior Court Judge Jessica A Uzcategui has denied the petition.

According to US media, she said Allman had proved "he has managed his finances" and "has remained drug free".

Allman had to submit several drug tests before the hearing.

A conservatorship is normally granted by a court for individuals who are unable to make their own decisions, like those with dementia or other mental illnesses.

It can be used to manage a person's financial affairs or personal affairs or both.

US outlet People reported that Cher's lawyers again voiced their concerns about Allman's mental health during Monday's hearing.

The judge said: "I don't question Cher's concerns being driven by concern for her son. I don't think [Allman] questions that."

But she concluded that much of what the star's legal team was arguing was based on hypotheticals and "fears".

According to the AP news agency, Ms Uzcategui will still consider a larger, long-term conservatorship at a hearing in March.