Hypothyroidism refers to hypothyroidism, which may have some effects on kidney function, such as impaired kidney drainage and tissue water retention. Hypothyroidism is caused by insufficient synthesis of thyroid hormones in the body or weakened action on thyroid hormones, and the disease progresses slowly, there may be no obvious symptoms in the early stage, and in the later stage, there may be damages to all organ systems in the body. Some patients may have reduced renal blood flow, a small amount of proteinuria due to thickening of the glomerular basement membrane, and impaired drainage function of the kidneys, leading to tissue water retention. Patients with hypothyroidism need to actively cooperate with the doctor’s treatment, oral thyroxine tablets as prescribed by the doctor, it is recommended to start with a small dose and gradually increase the amount. It is recommended that patients who have been diagnosed with hypothyroidism go to the hospital for treatment in a timely manner, so as not to delay their condition.