When people think of an abusive relationship, they often visualise cuts and bruises.
But domestic abuse is not just physical, it can include verbal, sexual, psychological, financial or emotional abuse.
Now, a hashtag is serving as a powerful reminder that a partner doesn't need to raise their fists to be abusive.
For the past 24 hours #MaybeHeDoesntHitYou tweets have been highlight the many, many ways a partner can be abusive.
"The hashtag is a powerful reminder that domestic abuse is not just physical," Polly Neate, Chief Executive of Women's Aid, told The Huffington Post UK.
"Coercive control, financial abuse and emotional abuse are all part of domestic abuse - in fact, physical violence often comes later on in an abusive relationship.
"Coercive control - the insidious stripping away of a victim's self-esteem - is at the heart of domestic abuse. It's vital that this is understood by society as a whole."
Domestic abuse affects one woman in four at some point in her lifetime and it kills two women every week in the UK.
However, while the majority of victims are female and the majority of perpetrators are male, HuffPost UK acknowledge that victims can be male or female, as can perpetrators. This is why the following tweet is so important to remember.
Useful contact numbers
Refuge - Domestic violence help for women and children - 0808 2000 247
Visit Women's Aid - support for abused women and children – or call the National Domestic Violence Helpline, run by Women’s Aid and Refuge, on 0808 2000 247
Broken Rainbow - The LGBT domestic violence charity - 0845 2 60 55 60
Men’s Advice Line for advice and support for men experiencing domestic violence and abuse - 0808 801 0327