Get Surrey reports: The suspect has targeted four lone women in Warren Street, Tormead Road, Epsom Road and Warren Road.
He is described as white, aged in his late 50s, of chubby build and bald.
On Sunday February 16 between 7pm and 7.30pm, a woman was walking along Epsom Road when a man naked from the waist down approached her.
Around the same time that evening a woman was jogging in Warren Road near Austen Road when a man crossed the road and flashed at her.
Then at around 7pm on Sunday March 16, a man wearing no trousers or underwear approached a woman in Tormead Road.