A third of Scottish mothers suffering extreme postnatal depression do not receive the expert care they should, according to a report.

The Mental Welfare Commission found that women who are not treated in Scotland's two specialist mother and baby unit were separated from their babies for long periods of time, contrary to guidelines.

They were also less positive about the care they received compared to mothers who were treated at the specialist units.

The report, Keeping Mothers and Babies in Mind, also found that only five of Scotland's 14 health boards offer a local specialist community mental health service.

Dr Gary Morrison, Executive Director for Medical at the Commission, said: "National guidelines recommend that women with severe mental illness who need psychiatric admission late in pregnancy or within a year of childbirth, should be admitted to a specialist unit, unless there are specific reasons for not doing so.

"The Mental Health Act says they should be admitted to hospital with their baby.

"Our survey found that this was not always happening. One reason appears to be the difficult choice many women are faced with – whether to move away from their local community to be treated in a specialist unit, or whether to accept care in a non-specialist ward nearer home.

"This is a hard choice to make, and can put additional pressure on a mother, and on her family at home."

The report recommends that better training and better child-friendly facilities on general mental health wards and better specialist community services.

Dr Roch Cantwell, chair of the Perinatal Faculty of the Royal College of Psychiatrists in Scotland, added: "This report is a timely reminder that, while Scotland has done much to develop services for pregnant and postnatal women who experience mental health problems, there are still significant gaps in service provision.

"It should not be the case that, at such a critical time for a woman and her developing child, where she lives can determine her access to specialised advice and treatment."