A woman has died after she was allegedly attacked by her partner at a home in Sydney’s west.

The man, 46, assaulted the woman, 51, after they had an argument at their Quakers Hill home on Monday morning, police have alleged.

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Paramedics found the victim with head trauma, serious facial bruising and a collapsed lung at the Hillcrest Road property after being called to the scene about 6:00am.

She was taken to Westmead Hospital in a critical condition, and hospital staff contacted police.

The man appeared in court yesterday after being charged with assault occasioning grievous harm.

Police said further charges were likely.