Symptoms of hypothyroidism begin slowly over weeks or months. You may have hypothyroidism for a long time before you realize you are ill. Symptoms change with the degree of the hypothyroidism and how long your body has not had the proper amount of thyroid hormone.
You may have only one of these symptoms, but usually patients have a combination. Some patients with hypothyroidism do not have symptoms or have mild symptoms that go unnoticed for a long period of time.
Enlarged thyroid gland, called goiter (not always present)Fullness in the neckDifficulty swallowing or trouble breathing (can happen if the goiter is very large)
Goiter (Enlargement of the Thyroid Gland)
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Other symptoms or signs include: FatigueWeaknessCoarse, brittle hair and hair lossDry, scaly skinUnable to tolerate cold temperaturesWeight gain (may happen despite having a poor appetite)ConstipationAchy feeling all overDepression
Memory loss and personality changeIrregular or heavy menstrual periodsFacial puffinessSwollen feet or handsInfertilityReduced sweating
Symptoms of severe or extended cases include: Swelling of the skin and tissue around the eyesSlow heart rateHypothermia (low body temperature)Shortness of breath during activity or when lying flatDrowsiness and lower mental alertness
Singer P, Cooper D, Levy E, et al. Treatment guidelines for patients with hyperthyroidism and hypothyroidism.
Wartofsky L. Myxedema coma.
Endocrinol Metab Clin North Am
Last reviewed December 2013 by Kim Carmichael, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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