Is it normal for the follicle to be echoless?

The absence of echoes proves that the follicles are liquid. If you check in the hospital, there will be strong echo areas on the B-ultrasound report, which means that there is something hard inside the body, and it is very likely that the tissues inside the body have been diseased. Generally, the ultrasound results of patients with stones will have strong echo areas. In this case, medication should be taken under the guidance of a doctor. Do not make random guesses and delay the treatment.

[Term Analysis]: To understand the meaning of B-ultrasound echo, we must first talk about the principle of B-ultrasound. B-ultrasound utilizes the different acoustic impedances of different tissues. When sound waves pass through, an acoustic interface is formed between the two tissues, and different echo areas appear.

The most common ones are high echo, equal echo, low echo, and no echo. The standard for echo strength or height is generally determined by taking the normal echo of the organ as the standard or by comparing the echo intensity of the lesion site with that of the surrounding normal organs. For example, liquid is anechoic, while stone gas or calcification is highly echoic.

The internal echoes of normal human soft tissues are arranged from strong to weak as follows:

Renal sinus > placenta > pancreas > liver > spleen > renal cortex > subcutaneous fat > renal medulla > brain > venous blood > bile and urine.

Generally speaking, strong echoes mostly refer to lesions with higher density, such as stones, calcifications, etc.; low echoes mean that the echoes in this area are lower than normal tissues, which can be seen in breast hyperplasia and breast tumors; no echoes mean that the structure is basically filled with uniform liquid, which is often a fluid-filled cystic cavity such as water accumulation, fluid effusion, and cysts. Anechoic areas can often be seen in combination with other ultrasound signs and medical history data analysis and diagnosis, especially in obstetrics and gynecology, and their meaning is very rich.

【Common cases of no echo in B-ultrasound】

When B-ultrasound was detecting follicles, an echo-free area was detected. The ultrasound report showed: the right ovary was about 54*31*30mm in size, inside which an echo-free area of ​​22*14mm could be detected, with clear boundaries, regular shape, and enhanced posterior wall effect; the left ovary was about 57*25*25mm in size, inside which a similar echo-free area of ​​9*8mm could be detected.

Analysis: No echo means liquid. The no echo in the right ovary is the follicle. Generally, ovulation is normal when the diameter of the follicle is between 18-24mm. Any larger or smaller follicle is abnormal. Therefore, the 22x14mm follicle without echo in the right ovary is not mature and has not ovulated. It is recommended to continue monitoring the development of the follicle and have sex after ovulation, so that the chance of pregnancy is relatively high.