Progesterone, on the other hand, mainly controls the uterine lining buildup and helps mature and maintain the uterine lining during pregnancy.

When the fertilized egg attaches itself to the uterus lining, some bleeding may occur because the uterus lining is filled with blood.

Obesity Affects the Uterine Lining: An obese woman is at a greater risk of developing abnormal thickening of the uterus lining.

They reside in the uterine lining and are also released from this lining.

They thin the uterine lining to prevent implantation.

Your baby has just implanted into your uterine lining.

The particles are advantageously formed to have a sharp end which easily penetrates into the uterine lining.

The blastocyst becomes firmly embedded in the endometrium (uterine mucosa).

It prevents thickening of the inner uterine lining.

They thin the uterine lining to prevent implantation.

Inflammation of the uterine lining (endometritis, especially blennorrhagic).

If the uterine lining was not ready, implantation is not successful.

The uterine lining is the source of menstrual blood.

After four weeks into pregnancy, the blood vessels in the uterine lining will grow and enlarge, thickening the uterine lining.

Kidney-essence is the ultimate origin of menstrual blood.