Leviticus 15:23

If her blood touches anything on the bed or anything she sits on, it will be unclean until evening.

Treasury of Scripture Knowledge

Summary

And if it be on her bed, or on any thing whereon she sitteth, when he toucheth it, he shall be unclean until the even.

General references

Bible References

General references

Leviticus 15:25
When a woman has a discharge of blood for many days other than her monthly period, she is unclean. If her period lasts longer than usual, she will be unclean as long as she has a discharge. It is similar to her period.