thyroid disease and hair loss. types of hair loss generalized shedding more hair in drains, on brush...
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Thyroid Diseaseand
Hair Loss
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Types of Hair LossGeneralized shedding
More hair in drains, on brushNo specific patches of loss or baldnessMost common in thyroid disease
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Discrete patches of lossAssociated with fungal infection or autoimmune
alopecia
Male pattern baldnessMen and womenLoss concentrated of temples and top of headConversion of testosterone to dihydrotestosterone
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Causes
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Untreated/Undertreated Thyroid Disease
Hypo- or hyperthyroidism
Thyroid gland unable to provide hormones for hair follicle’s proper metabolismLoss of necessary supply of proteins and amino
acidsLoss of ability to absorb vital minerals and
vitamins Inability to grow properlyRedirection of energy needed for hair growth to
other parts of body
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Medication Side EffectLevothyroxine (Synthroid)
According to patient information, may cause generalized hair loss
Treatment for thyroid cancer
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Treatments Normalize thyroid levels
May benefit from addition of T3 (Cytomel) or T4/T3 drug (Thyrolar, Armour) versus pure synthetic T4 (Synthroid)
May take several months to see improvement
Alternative supplements Evening primrose oil (EPO)
Source of essential fatty acids Lysine supplementation (meat, fish, eggs) Aromatherapy of essential oils (thyme, cedar wood, lavendar, rosemary)
Hair transplantation
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Treatments to AvoidDHT inhibitors (Propecia)
Growth stimulators (Minoxidil)
These medications have not been shown to be effective in patients with thyroid imbalances
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Eyebrow LossMore common in hypothroidism
Primarily affects outer third of brow – may be completely absent
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TreatmentsSimilar to head hair loss (thyroid meds, evening
primrose oil, supplements)
Transplantation (micrografts, single hair)
Permanent makeup (tattoo)
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Eyelash LossHypo – or hyperthroidism
Eyelash hair follicles have thyroid hormone receptors on their surface
Uncommon to be the presenting sign in thyroid disease
Rule out other causes trichotillomania DM vitiligo pernicious anemia Addison’s
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TreatmentsSimilar to other treatments discussed
Additional treatmentsFNS Nutrilash
Mixture of vitamins, minerals and amino acids
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LatisseBimatoprost ophthalmic solutionSide effects: increased brown
pigmentation of iris, eyelid
skin darkening, eye
redness, itching)
LiLashProstaglandin analogSide effects: eyelid darkening,
eye redness, itching