Pituitary microadenomas usually do not cause numbness, swelling and pain on one side of the limb. Pituitary microadenomas usually have no obvious clinical symptoms, but with the gradual enlargement of the tumor, there may be occupying effect symptoms, mainly manifested by increased intracranial pressure and local symptoms. 1. Increased intracranial pressure, headache, dizziness, nausea, vomiting and optic papillary edema. 2. Local symptoms: mainly affecting the structure of the saddle area, patients may have decreased visual acuity, visual field loss, and some patients may have endocrine disorders. When secreting prolactin, female patients may have amenorrhea, lactation, irregular menstruation and other symptoms, and male patients may have sexual dysfunction. Even the secretion of growth hormone may have the manifestation of gigantism. Therefore, patients with pituitary microadenomas usually do not cause numbness, swelling and pain on one side of the limbs, unless the pituitary tumor is very large and has affected the surrounding brain tissue, then the symptoms may appear. Patients with suspected intracranial tumors need to actively seek medical attention, complete relevant examinations, and follow the doctor’s instructions for targeted treatment.