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Hypothyroidism

 Syn. Low T4 , Underactive thyroid , thyroid insufficiency

Signs & Symptoms

 Decreased short-term memory
Ref: Uptodate [ Neurologic manifestations of hypothyroidism] Harrison [ 2699]
Delayed ejaculation Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism]
Erectile dysfunction Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism]
Decreased libido Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism] Harrison [ 2700]

Physical Examination

 Brittle hair
Ref: Harrison [ 2700]
Dry hair
Ref: Harrison [ 2700]
Poor concentration
Ref: Uptodate [ Neurologic manifestations of hypothyroidism] Harrison [ 2699]

Lab / Serology

 Abnormal sperm morphology Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism]
Hyperprolactinemia Gr. Female
Ref: Uptodate [ Clinical manifestations of hypothyroidism] Harrison [ 2700]
Low serum free testosterone Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism]

Imagin Study

 Pleural effusions
Ref: Uptodate [ Major symptoms and signs of hypothyroidism] Harrison [ 2700]
Lower regional activity in the perigenual anterior cingulated cortex
Ref: Harrison [ 2700]
Lower regional activity in the amygdala
Ref: Harrison [ 2700]

Complication

 Abnormal sperm morphology Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism]
Erectile dysfunction Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism]
Delayed ejaculation Gr. Male
Ref: Uptodate [ Clinical manifestations of hypothyroidism]

Risk Factors

 Elder
Ref: Harrison [ 2699]
Type 1 diabetes
Ref: Harrison [ 2701]
Enlarged pituitary gland
Ref: Harrison [ 2701]

Cause

 Hashimoto thyroiditis
Note: In adults
Ref: Cecil [ 638]
Treatment with amiodarone
Ref: Cecil [ 638]
Iodine deficiency
Ref: Cecil [ 638]

Other