The endometrium of 0.8cm needs to be judged whether it is normal or not according to different ages and groups of people. After menopause, if the endometrium is 0.8cm, it is abnormal, and for women of childbearing age, the endometrium of 0.8cm is basically normal. 1. Postmenopausal women: If the endometrium is 0.8cm after menopause, it is abnormal. The endometrium of postmenopausal women is usually ≤0.4cm, and 0.8cm is a thicker endometrium. 2. Women of childbearing age: For women of childbearing age, an endometrium of 0.8cm is basically normal. Because the thinnest endometrial lining of women of childbearing age may be 0.5~0.6cm, and 1.0~1.5cm before menstruation, endometrial lining of 0.8cm after menstruation and in the middle of menstruation is normal. However, if the thickness of the endometrium is 0.8cm when menstruation is about to begin, the endometrium is thin, which may be due to the damage of the endometrium after abortion, and the amount of menstruation will be low. Therefore, if the endometrium is 0.8cm, it is recommended to go to the hospital in time and follow the doctor’s instructions.