If you have an anovulatory cycle, you may notice light spotting or bleeding that is heavier than usual. Without hormonal regulation, your endometrium may shed in an erratic, unpatterned way.

This alerts the corpus luteum to prolong its usual lifespan and to continue releasing progesterone so that the lining of your womb won’t disintegrate and can provide a nourishing environment for the ...

particularly low progesterone, can cause the lining of the uterus to become unstable and shed, causing the bleed. It’s normal to experience an anovulatory cycle from time to time, especially ...

Long-term anovulation may be a sign of ... One of the main symptoms is irregular menstrual cycles. When too much or too little thyroid hormone is released in the body, you may spot or have only ...

and some are also affected by other pituitary hormone cycles, such as those of the thyroid and prolactin. Even minor alterations of these pathways can cause an anovulatory period characterized by ...