Polydipsia, or excessive thirst, can be caused by conditions like diabetes and dehydration. Treatments depend on the underlying cause but may include insulin, antibiotics, and medications to control thirst. Growth hormone (GH), also called somatropin, is secreted by the pituitary gland and stimulates growth and cell regeneration. Too much GH can cause benign pituitary tumors, while too little GH in children causes short stature and in adults leads to obesity and low energy.