TSH Alto: Qué Significa y Qué Hacer
A high TSH level (above 4.0 mIU/L) means your thyroid is underactive — hypothyroidism. Your pituitary produces extra TSH trying to stimulate more thyroid hormone. This is the most common thyroid abnormality and is treatable with levothyroxine medication.
¿Qué Causa TSH Alto?
Hypothyroidism
The most common cause. Your thyroid gland isn't producing enough thyroid hormone, so your pituitary raises TSH to compensate.
Hashimoto's Thyroiditis
An autoimmune condition where your immune system attacks your thyroid, gradually destroying its ability to produce hormone.
Iodine Deficiency
Iodine is essential for thyroid hormone production. Deficiency is rare in the US but common globally.
Thyroid Surgery or Radiation
Previous treatment that removed or damaged thyroid tissue reduces hormone production.
Medication Effects
Lithium, amiodarone, and some other medications can impair thyroid function and raise TSH.
Síntomas Asociados
Qué Hacer a Continuación
1. Repetir la prueba para confirmar
Un solo resultado anormal debe confirmarse con una segunda prueba. Factores temporales como estrés, enfermedad o medicamentos pueden afectar los resultados.
2. Pruebas relacionadas a considerar
Free T4
$8
Measures the unbound, active form of the thyroid hormone T4. Helps assess thyroid function and diagn...
Free T3
$10
Measures the active thyroid hormone T3. Important for evaluating thyroid function, especially in hyp...
3. Cuándo consultar un médico
Si su TSH es significativamente anormal, si tiene síntomas severos, o si resultados repetidos confirman la anomalía, consulte a un profesional de salud para evaluación y tratamiento apropiado.
Condiciones Relacionadas
Frequently Asked Questions
Esta página es solo para fines informativos y no constituye consejo médico. Consulte a un profesional de salud para la interpretación de sus resultados.
Content reviewed for accuracy by the JustLabs editorial team.