What does it mean when thyroid-stimulating hormone (TSH) levels are elevated?

Thyroid-stimulating hormone (TSH) is a hormone secreted by the anterior pituitary gland that promotes thyroid gland growth and function. It stimulates proliferation of thyroid follicular epithelial cells and facilitates synthesis and release of thyroid hormones. So, what causes elevated TSH levels? Below, we address this question.

Causes of Elevated Thyroid-Stimulating Hormone (TSH)

1. Emotional Stress

Psychological stress in daily life may lead to stagnation of liver Qi, which further impairs spleen function, resulting in abnormal transformation and transportation of fluids and nutrients and internal accumulation of damp-phlegm. Viral infections, physical trauma, or emotional stress may all trigger elevated TSH levels.

2. Improper Diet

Consumption of inappropriate foods can damage the spleen and stomach, leading to deficiency of central Qi and impaired digestion and absorption. This results in internal generation of phlegm-dampness. Excessive phlegm-dampness obstructs the flow of Qi and damages Spleen Yang. As the Spleen serves as the foundation of acquired constitution, prolonged Spleen Yang deficiency may impair Kidney Yang, ultimately causing dual Spleen-Kidney deficiency. Symptoms include poor appetite, aversion to cold, cold limbs, excessive sleepiness, lethargy, and generalized edema.

3. Invasion by External Pathogenic Factors

Wind-heat-toxin pathogens commonly enter via the mouth and nose, accumulating in the anterior neck region and causing sore throat and swelling or pain in the neck. Overuse of cold-natured substances may damage Yang Qi internally; although heat-toxin in the neck may be resolved, symptoms such as hoarseness, cold intolerance, and edema may persist.

Additional Information: Risks Associated with Elevated TSH

1. Reproductive System Effects

In males, elevated TSH may cause decreased libido, erectile dysfunction, reduced sperm count, and infertility. In females, it may lead to menstrual irregularities, amenorrhea, and infertility. Even if pregnancy occurs, risks include fetal growth restriction, preterm birth, miscarriage, and stillbirth.

2. Musculoskeletal System Effects

Patients may experience delayed muscle contraction and relaxation, persistent muscle pain and stiffness, and osteoporosis. Joint mobility may decrease, with sensations of rigidity and worsening symptoms upon cold exposure.

3. Neurological and Psychiatric Effects

Symptoms may include memory impairment, diminished cognitive function, excessive sleepiness, slowed reactions, anxiety, dizziness, headache, tinnitus, hearing loss, nystagmus, ataxia, delayed tendon reflexes, and prolonged Achilles reflex time. Severe cases may progress to dementia or even stupor.

The above outlines potential causes and associated risks of elevated TSH. We hope this information is helpful to you.