GEMMA Collins is seen wiping away tears when discussing her history with self-harm in a new Channel 4 documentary.

The reality tv star, best-know for her role in The Only Way is Essex has spoken out about self-harm in a new teaser for the documentary.

Discussing her “painful” past, Gemma opens up about how she felt “scared and alone”.

TOWIE star Gemma Collins opens up about self-harm.

Sharing the trailer on Instagram, the 41-year-old said: "I’m so proud of my new documentary Gemma Collins: Self Harm and Me coming to @channel4 next Wednesday, February 16, at 9pm.

"I’m revealing a side of me I’ve previously kept very private. It has been hard and emotional to talk about, but it’s so important we open up about these things more and encourage others to get help if they need it."

"I was getting overwhelming emotion and I couldn't cope with it,” Gemma told Channel 4 cameras.

 "It's something that I've buried for 20 years.

"It's not like a normal conversation you can have with someone.

"I never told anyone because it was shameful, I was scared. I wish I were brave enough to ask for the help.

"I could've saved myself a lot of pain."

Gemma Collins: Self Harm and Me will air on Channel 4 on Wednesday, 16 February and will be available for catch-up on All 4.