September 11, 2025 - Hypothyroidism is when your thyroid gland doesn’t make enough hormone. It can make you feel tired or gain weight unexpectedly. Hormone replacement therapy can help.

December 10, 2022 - Understand what happens when your thyroid is underactive and learn about treatment for this condition.

May 2, 2025 - Low thyroid levels can affect the heart in other ways too. These effects may include: ... Bradycardia can cause weakness, dizziness, and breathing problems. Without treatment, this heart condition may result in serious complications, such as high or low blood pressure or heart failure. Untreated hormone disorders, including thyroid problems, can contribute to hair loss. This is because thyroid hormones are essential for the growth and health of hair follicles.

January 13, 2025 - Too little thyroid hormone may disrupt your production of eggs (ovulation) and make it harder to conceive. Joint pain. Low levels of thyroid hormone can cause you to have aches and pains in your joints and muscles, as well as tendonitis.

The goal of treatment is to return your levels of thyroid hormone back to normal. Untreated hypothyroidism may lead to anemia, low body temperature, and heart failure.

This is a condition in which your body's functions slow down to the point that it becomes life-threatening. During pregnancy, hypothyroidism can cause complications, such as premature birth, high blood pressure in pregnancy, and miscarriage. It can also slow the baby's growth and development. Your health care provider may use many tools to make a diagnosis: A medical history, including asking about your symptoms ... Imaging tests, such as a thyroid scan, ultrasound, or radioactive iodine uptake test.

February 10, 2025 - An underactive thyroid gland (hypothyroidism) is where your thyroid gland doesn’t produce enough hormones. Common signs of an underactive thyroid are tiredness, weight gain and feeling depressed.

October 3, 2025 - Many of these symptoms, especially fatigue and weight gain, are common and do not necessarily mean you have a thyroid problem. ... Less often, hypothyroidism is caused by too much or too little iodine in the diet or by disorders of the pituitary gland or hypothalamus.1 Iodine deficiency, however, is extremely rare in the United States.

September 10, 2015 - Too little iodine. Your thyroid needs iodine to make hormones. Pituitary gland damage. The pituitary gland tells the thyroid what to do. If it’s damaged, it can’t give the thyroid proper instructions. ... TSH Test. TSH is a hormone from the pituitary gland that tells the thyroid to work. If your thyroid is not making enough hormone, your TSH goes up. But if the pituitary is damaged, this test may not help.

1 month ago - Hypothyroidism, also called an ... in your body use energy. When you don’t have enough of the hormones, you’ll experience symptoms like fatigue and weight gain....

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Thyroid hormones help regulate heart function.9 If your medication dose is too low, your resting heart rate may slow down abnormally. ... A normal resting heart rate for most adults is between 60 and 100 beats per minute (BPM).10 A significantly lower rate (especially under 60 BPM, if you're not an athlete) could indicate an underactive thyroid.

Puffy face and swelling: Fluid retention due to low thyroid function can cause puffiness, particularly in the face, hands, and feet. Hoarseness and swelling in the neck: Some people with hypothyroidism experience a hoarse voice or notice swelling ...

January 22, 2025 - A swollen or puffy face can be a sign of hypothyroidism, often accompanied by swelling in the hands and feet. ... Unexplained pain, stiffness, or swelling in your muscles and joints could be related to thyroid hormone levels.

May 10, 2024 - WebMD explains the symptoms of hypothyroidism (low thyroid level), including fatigue and weight gain.

June 2, 2025 - Unfortunately, symptoms of a thyroid condition are often very similar to the signs of other medical conditions and stages of life. This can make it difficult to know if your symptoms are related to a thyroid issue or something else entirely. For the most part, the symptoms of thyroid disease can be divided into two groups — those related to having too much thyroid hormone (hyperthyroidism) and those related to having too little thyroid hormone (hypothyroidism).

This attack damages the thyroid so that it does not make enough hormones. ... Symptoms of hypothyroidism develop slowly, often over several years. At first, you may feel tired and sluggish. Later, you may develop other signs and symptoms of a slowed-down metabolism, including:

Weight gain may signal low levels of thyroid hormones, a condition called hypothyroidism. In contrast, if the thyroid produces more hormones than the body needs, you may lose weight unexpectedly. This is known as hyperthyroidism.

Fatigue or constant tiredness: This is a common symptom of hypothyroidism that occurs because your body’s metabolism slows, making everyday tasks feel exhausting. Weight gain despite no change in diet: Reduced metabolic rate may lead to mild ...