|Classification and external resources|
Hypothroidism is when the thyroid gland does not make enough thyroid hormone.
Hypothyroidism is a medical condition. If a person has hypothyroidism, their thyroid gland does not make enough hormones. It can be caused by many factors, but it is more common when a person has insufficient iodine. Severe hypothyroidism in infants can result in cretinism. Symptoms of hypothyroidism include the following: tiredness, headaches, weight gain, dry skin, constipation, and poor concentration.
|Fatigue||Dry, coarse skin|
|Feeling cold||Cool extremities|
|Poor memory and concentration||Myxedema (mucopolysaccharide deposits in the skin)|
|Weight gain with poor appetite||Slow pulse rate|
|Shortness of breath||Swelling of the limbs|
|Hoarse voice||Delayed relaxation of tendon reflexes|
|Heavy periods (and later light periods)||Carpal tunnel syndrome|
|Abnormal sensation||Pleural effusion, ascites, pericardial effusion|