Fears are growing for a missing Perth woman who is need of medication.

Police are concerned for the welfare of Catriona Rouxel, 38, who was last seen around 3pm on Monday.

Catriona suffers from a medical condition that requires medication and can appear to be confused or verbally aggressive if she goes without.

She is described as 6ft 1 with a slim build and long fair/blonde hair which has a temporary red colour.

She often wears large rings on her fingers and when she was last seen was wearing a long brown/khaki style jacket with blue jeans and red shoes.

It is believed that she may have travelled to Edinburgh.

Anyone with any information regarding Catriona's whereabouts or that could assist in tracing her should contact police on 101 or speak to any officer.