If the pituitary tumor worsens, the consequences include the following: first, if the pituitary tumor proliferation is particularly obvious, it will appear in a short period of time obvious compression symptoms. The enlarged pituitary tumor will compress the normal brain tissue or pituitary gland tissue in the surrounding area. If the normal pituitary tissue is severely compressed, the endocrine hormones secreted by the pituitary gland will drop significantly, even to very low levels, in which case some of the hormones that are essential for life, if the levels are insufficient, may have serious consequences. If more serious compression symptoms are produced, such as the compression of optic nerve or optic cross, the serious consequence of double blindness will occur. Secondly, if the pituitary tumor is aggravated and the level of hormones secreted by the pituitary tumor is particularly high, it can also produce some manifestations of hyperfunctioning of the endocrine glands, such as hyperthyroidism, which can also lead to death in severe cases.