In hyperthyroidism, the thyroid hormones are regulated by the pituitary gland, which leads to endocrine disorders in women, and the body is in a state of high metabolism, resulting in low menstrual flow. If you want to treat hyperthyroidism first, you need to treat hyperthyroidism and adjust thyroid hormones with medication, you can take propylthiouracil orally. When the symptoms of hyperthyroidism improve, the endocrine level will gradually return to normal and the menstrual flow will return to normal. In addition to medication, we also need to develop good habits, don’t stay up late, quit smoking and drinking, eat a reasonable diet, don’t eat foods with high iodine content such as kelp, and regulate our mood to keep it calm and happy. Hyperthyroidism with low menstrual flow can also be treated with oral Chinese medicinal preparations, such as Wuji Baifeng Pill, Kun Bao Pill, Yimu Pill and estrogen tablets.