Mixed echoes in the left lobe of the thyroid gland refers to the description in the ultrasound report of the thyroid gland, meaning the presence of a nodule or mass on the left side of the thyroid gland, which is a combination of cystic and solid in nature. In ultrasound, echoes are categorized as anechoic, hypoechoic, and strongly echogenic. Generally, the anechoic type is dominated by fluid dark areas, indicating that the nodule or mass is filled with fluid, which represents a cystic nature. The hypoechoic and strong echogenic types are usually solid nodules or masses that encounter information reflected from ultrasound. Mixed echoes indicate that there are at least two of the above types, suggesting that the nodule or mass on the left side of the thyroid is a combination of cystic and solid. It is recommended that in the case of mixed echoes in the left lobe of the thyroid gland, other relevant tests should be completed under the supervision of a doctor in order to take further steps.