甲状腺功能减退
Overview
甲状腺功能减退 occurs when the thyroid gland fails to produce enough thyroid hormone. Without enough thyroid hormone, the body becomes tired and run down. 每个器官系统都会减慢, 包括大脑, which affects concentration; the gut, causing constipation; and metabolism – the rate at which the body burns energy – resulting in weight gain. Although there are many different causes of hypothyroidism, the resulting effect on the body is the same.
The most common cause of hypothyroidism is Hashimoto's thyroiditis, a disease in which the body's immune system attacks the thyroid gland. Failure of the pituitary gland to secrete a hormone to stimulate the thyroid gland, called secondary hypothyroidism, is a less common cause of hypothyroidism. Other causes include congenital defects, surgical removal of the thyroid gland, irradiation of the gland and inflammatory conditions.
The condition is more common in women and people over the age of 50. Other risk factors include thyroid surgery and exposure of the neck to X-ray or radiation treatments.
Our approach to hypothyroidism
UCSF offers comprehensive consultations and care for thyroid conditions, including hypothyroidism (underactive thyroid). For this condition, we prescribe thyroid hormone and adjust the dose until normal levels are reached. With proper treatment, patients with hypothyroidism can eliminate 症状.
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迹象 & 症状
Symptoms of hypothyroidism depend on the decrease in thyroid hormone and the duration of the condition. Often, mild 症状 are mistaken for other problems. 症状可能包括:
- 乏力。
- Joint or muscle stiffness
- 听力下降
- 体重增加
- 干燥的皮肤
- 对寒冷的敏感性
- Coarseness or loss of hair
- Goiter, or an enlarged thyroid causing a lump in the neck
- 便秘
- Memory and mental impairment
- Depression and irritability
- Irregular or heavy menstruation
- 心率减慢
- 性欲减退
诊断。
The most effective and efficient way to diagnose hypothyroidism is by measuring the thyroid stimulating hormone (TSH) level in your blood, which will be high if you have the disease. At the same time, the thyroid hormones, T4 and T3, will be low.
Other tests may be performed to determine the cause of hypothyroidism, including measuring thyroid antibody levels.
治疗
Since patients with hypothyroidism have deficient levels of thyroid hormone, treatment for the condition focuses on hormone replacement therapy. One example of hormone replacement treatment is the hormone pill levothyroxine, which is taken once a day, preferably in the morning.
Although thyroid hormone drugs produce no allergic reactions, their effectiveness may be decreased by interactions with other drugs or food supplements. It's important that you tell your doctor about other drugs and supplements you're taking.
加州大学旧金山分校健康 medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.
