One physician notes that clinical observation shows that breastfeeding contractions do not produce dilation of the cervix. Accordingly, in the Moscona survey of 57 mothers breastfeeding during pregnancy, only four women (seven percent) recalled contractions related to breastfeeding at all.
The pituitary gland itself consists of a larger anterior lobe that makes the following hormones: adrenocorticotropic hormone (ACTH), thyroid-stimulating hormone (TSH), luteinizing hormone (LH), follicle-stimulating hormone (FSH), growth hormone (GH) and Prolactin.
Other cases are caused by various disease processes, including failure of the pituitary gland to secrete ACTH, the hormone which stimulates the adrenal production of cortisol. Hypoadrenocorticism is more frequent in dogs than in humans; in fact, it may occur one hundred times more often in the canine population.