Will having too thick endometrium affect pregnancy?

Excessive endometrial thickness may affect pregnancy, but the specific impact needs to be comprehensively judged based on the cause and degree of thickening. Endometrial thickening may be related to endocrine disorders, endometrial polyps, endometrial hyperplasia and other factors.

Physiological thickening usually does not affect pregnancy. During a woman's menstrual cycle, the endometrium naturally thickens due to hormonal changes in preparation for the implantation of a fertilized egg. After ovulation, the endometrium thickness reaches 8-14 mm, which is within the normal range. This periodic thickening helps embryo implantation. If ultrasound shows uniform thickening of the endometrium and no abnormal blood flow signals, and normal hormone levels, it will not affect pregnancy in most cases.

Pathological thickening may reduce the probability of pregnancy. Abnormal thickening lasting more than 15 mm may prevent embryo implantation. Endometrial hyperplasia, for example, may lead to glandular structural disorders, and endometrial polyps may occupy the uterine cavity space. Long-term anovulation caused by polycystic ovary syndrome causes estrogen to continuously stimulate the endometrium, causing uneven thickening. This type of situation may be accompanied by symptoms such as increased menstrual flow and prolonged menstrual periods, and the nature needs to be clarified through hysteroscopy or diagnostic dilation and curettage.

It is recommended that women with fertility needs pay attention to the condition of the endometrium during pre-pregnancy examinations and monitor the thickness and shape of the endometrium through ultrasound. If abnormal thickening is found, further examination of six hormones, thyroid function, etc. is required to rule out endocrine diseases. If simple hyperplasia is diagnosed, progesterone drugs can be used to regulate it. For complex hyperplasia, hysteroscopic surgery should be considered. Maintaining a regular schedule and controlling your weight can help maintain hormone balance and avoid excessive supplementation of estrogen-based health products.