The normal pituitary gland does not show abnormal symptoms after pregnancy. After pregnancy, the pituitary gland increases in size and secretes hormones and fluctuates, but these are normal changes. The pituitary gland is located in the ventral part of the lower part of the thalamus and has the shape of a small ovoid body, it is the most complex endocrine gland in the body. After pregnancy, the pituitary gland increases slightly in size, and at the end of pregnancy, the pituitary gland increases significantly in size, and the eosinophils increase in size and become gestational cells. The large amount of estrogen and progesterone during pregnancy negatively feedback regulates the pituitary gland, causing the pituitary gland to secrete less gonadotropins. At the same time, with the development of pregnancy, the pituitary gland releases a gradual increase in prolactin, to promote the development of mammary glands. If there is any abnormality in the pituitary gland after pregnancy, you should go to the hospital in time, complete the relevant examinations to clarify the cause of the disease, and treat the symptoms under the guidance of the doctor.