Uncover the Hidden Hormonal Factor Behind Fatigue, Mood Swings, and Metabolism Issues

When you feel persistently tired, mentally foggy, or unable to lose weight despite diet and exercise, your thyroid might be the missing piece. Though thyroid issues are more commonly associated with women, thyroid dysfunction in men is often overlooked and can contribute to low testosterone, depression, weight gain, and sexual problems. Clinics like Gangnam J Urology Clinic in Seoul offer Thyroid Testing for Men (갑상선 기능 검사 – gapsangseon gineung geomsa) as part of a complete hormonal health check—making it easier for foreign residents and travelers to get clear answers and targeted care.

What Does the Thyroid Do—and Why Does It Matter for Men?

The thyroid gland, located at the base of your neck, produces hormones that regulate:

• Metabolism and weight control
• Body temperature and energy levels
• Heart rate and cholesterol
• Mood and cognitive performance
• Sexual function and testosterone activity

Two key thyroid hormones—T3 (triiodothyronine) and T4 (thyroxine)—must stay in balance. If thyroid function is too low (hypothyroidism) or too high (hyperthyroidism), it can disrupt nearly every system in your body, often mimicking symptoms of other conditions.

Signs You May Need a Thyroid Test

Common symptoms of low thyroid (hypothyroidism):

• Chronic fatigue or sluggishness
• Weight gain despite healthy eating
• Cold sensitivity or dry skin
• Depressed mood or low motivation
• Low libido or erectile dysfunction
• Thinning hair or slow-growing nails
• Brain fog, memory issues, or slow thinking

Less common signs of hyperthyroidism:

• Unexplained weight loss
• Rapid heart rate or anxiety
• Increased sweating or heat intolerance
• Restlessness or irritability
• Sleep disturbances

If you're being evaluated for low testosterone, fertility issues, or mood changes, thyroid testing is often recommended as part of a comprehensive hormone workup.

How Thyroid Testing Works at Gangnam J Urology Clinic

 1. Private Hormone Health Consultation

• Discuss symptoms, medical history, and lifestyle
• Conducted in English if needed, in a discreet clinical setting

 2. Blood Test – Thyroid Panel

• Typically includes:
• TSH (Thyroid Stimulating Hormone) – First-line screening
• Free T4 – Measures active thyroxine
• Free T3 – Optional, shows active form of thyroid hormone
• Thyroid Antibodies – For autoimmune causes (Hashimoto’s, Graves’)
• Blood draw usually done in the morning
• Results available in 1–3 business days

 3. Interpretation & Action Plan

• Doctors analyze your thyroid results alongside testosterone, cortisol, and other hormone levels
• Recommendations may include thyroid hormone replacement, lifestyle adjustments, or additional endocrine evaluation

Benefits of Early Thyroid Diagnosis

• Explains vague or overlapping symptoms
• Identifies causes of persistent fatigue or weight changes
• Supports proper TRT or fertility treatment if needed
• Helps prevent long-term complications (heart disease, depression, osteoporosis)
• Allows for non-invasive and cost-effective treatment in most cases

Cost of Thyroid Testing for Men in Korea

With NHIS (if medically necessary):

• TSH test: ₩5,000–₩10,000
• Full thyroid panel (TSH + Free T4/T3): ₩15,000–₩30,000
• Doctor consultation: ₩5,000–₩15,000

Without NHIS (out-of-pocket):

• Consultation: ₩30,000–₩60,000
• Full thyroid panel: ₩50,000–₩100,000
• Follow-up testing or medication (if needed): priced separately

Why Choose Gangnam J Urology Clinic for Thyroid Testing?

• Comprehensive hormone diagnostics tailored for men
• Evaluation includes thyroid, testosterone, DHEA, and cortisol
• English-speaking staff experienced with international patients
• Located in central Gangnam for easy access
• Integrated care: thyroid, sexual health, and energy optimization all in one visit



The thyroid may be small, but when it's off balance, it can quietly disrupt your energy, weight, sex drive, and mental focus. With accurate testing and expert analysis at Gangnam J Urology Clinic, you can finally connect the dots between how you feel and what’s happening hormonally. Whether you’re navigating low testosterone, chronic fatigue, or just feel “off,” thyroid testing could be the key to feeling like yourself again.