Huay Ngu police station was informed on Tuesday morning that Boonchua Sombatcharoen had been found dead on a bed inside a mosquito net at her house in Moo 7 village, in Tambon Sam Ngam Tha Bote.
Her left wrist had suffered a deep cut and a one-foot-long knife was found near her body.
There were no signs of a struggle.
Her relatives told police that she lived alone and she had become unwell with an ailment that had led to her being unable to work.
Worse still, they said, she had been reminded by a bank about the repayment of a loan she had taken out for a friend who was refusing to repay her the money.