Hypothyroidism is the abbreviation of hypothyroidism. Typical clinical manifestations of patients with hypothyroidism include chills, fatigue, swelling sensation of hands and feet, drowsiness, memory loss, low sweat, joint pain, weight gain, constipation, menstrual disorders in females, or excessive menstruation, and infertility. There is individual variability in the clinical manifestations of patients with hypothyroidism. The onset of hypothyroidism is insidious and the course of the disease is long, and many patients lack specific symptoms and signs. Symptoms mainly include decreased metabolic rate and sympathetic excitability, and early patients with mild hypothyroidism may have no specific symptoms. If you are suspected of having hypothyroidism due to the symptoms mentioned above, you should go to a local hospital to receive professional treatment without delay, so as not to delay your condition.