During menstruation, only menstrual blood is discharged without endometrial lining, which may be related to inappropriate observation, thin endometrial lining, etc. Generally, there is no need for special treatment, and observation is sufficient.
1. Inadequate observation: menstruation is caused by ischemia, necrosis and disintegration of the endometrium after it loses the support of estrogen and progesterone, during menstruation, if only the bleeding is observed but not the endometrium, it is generally normal, and the menstrual blood may be mixed with the endometrium, which is not easy to observe.
2. Thin endometrium: only menstrual blood discharge without endometrium may also be associated with the endometrium is thin, in the shedding of the endometrium with the reason for the discharge of urine, thus resulting in the illusion of not seeing the endometrium.
Menstruation only blood not discharged endometrium may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.