Constant Thirst and Lack of Appetite

Why Are You Always Thirsty but Not Hungry?

Persistent thirst, especially when it’s not due to heat or exertion, is often linked to your internal metabolic and hormonal systems. When paired with low appetite, it may point to conditions that require medical attention — such as blood sugar imbalances or thyroid overactivity. Understanding what your body is trying to tell you is the first step to feeling better.

Common Medical Causes of These Symptoms

Our general medicine team considers a full spectrum of factors when diagnosing constant thirst and appetite loss. Common causes include:

• Dehydration – Especially in Dubai’s hot climate.
• Diabetes – High blood sugar causes increased thirst and may reduce appetite.
• Hyperthyroidism – An overactive thyroid can accelerate your metabolism and suppress hunger.
• Medications – Certain medications (diuretics, antihistamines, SSRIs) may affect thirst or appetite.
• Infections or illnesses – Viral or bacterial infections can reduce appetite and affect fluid balance.
• Mental health conditions – Anxiety, stress, or depression can disturb normal thirst and hunger cues.

Diagnosing the Root Cause

At German Clinic, we begin with a thorough consultation and may recommend the following tests to determine what’s behind your symptoms:

• Blood tests to check glucose, thyroid hormone levels, kidney function, and hydration status.
• Urinalysis to detect signs of dehydration or glucose spill (as seen in diabetes).
• Medication review and lifestyle analysis.
• Thyroid panel (TSH, T3, T4) to assess for overactive thyroid function.

Treatment Options Tailored to You

Once we understand the root cause, your care plan is designed to restore balance and improve your quality of life. Treatments may include:

• Medical treatment for diabetes, thyroid disorders, or other identified conditions.
• Adjusting medications that might be contributing to the issue.
• Nutritional support and hydration planning tailored to your needs.
• Stress and mental health support if emotional factors are impacting your symptoms.
• Monitoring and follow-up to track improvement and prevent recurrence.

When Should You Seek Medical Help?

You should book a consultation if you experience:

• Persistent thirst that doesn’t go away, even with adequate water intake.
• Significant decrease in appetite or unexplained weight loss.
• Frequent urination, especially at night.
• Fatigue, dizziness, or mental fogginess.
• Dry mouth, skin, or eyes despite good hydration.
• A family history of diabetes or thyroid disease.