The effects of hypothyroidism on the patient’s body include cardiovascular disease, mental retardation, reproductive system and digestive tract diseases. Hypothyroidism refers to the patient’s hypothyroidism, hormone secretion is too little, hypothyroid patients need to take hormone replacement therapy for life, the main harm to the body are the following: 1, hypothyroid patients are often accompanied by pericardial effusion, slow heart rate, swelling of myocardial collagen fibers; 2, patients often have mental depression, memory loss, mental retardation, slow reaction, there is also the possibility of depression; 3, female hypothyroidism often have menstrual disorders In addition, men with hypothyroidism may have testicular atrophy, decreased libido, long-term hypothyroidism will lead to infertility; 4, patients will have abdominal distension, constipation, no appetite, and some patients lack of stomach acid; 5, children with hypothyroidism will also affect growth and development, so that children’s development is delayed mental retardation; 6, patients may also have muscle pain, chronic arthritis, etc..