Omg, why is everyone obsessed with tiny penises in this thread? lol
Panhypopituitarism is a condition when the production of at least 3 different pituitary hormones is compromised (for the record, the pituitary gland produces 8 different types). Symptoms may vary greatly depending on which hormones are not produced.
There is a difference between hypopituitarism in children (babies born with hormone production defects) and secondary hypopituitarism (a result of brain surgery, tumors, injuries, etc.)
In children, the lack of growth hormone can lead to short stature and obesity. Their weight gain may not be present if they also lack ACTH and gonadotropins (also pituitary hormones) - in this case they have a darker skin tone, delayed puberty (slow sexual develompment, but it still doesn't lead to "infantile genitalia", only lack of body hair, small muscle mass, no menstruation in females) and other symptoms such as fatigue and low blood sugar. More symptoms can be present if the thyroid hormone production is also bad (intolerance to cold, low blood pressure, even mental retardation).
In full grown adults, the symptoms are somewhat different. Growth hormone deficiency doesn't affect them as much because they are already fully grown. They have chronic fatigue, weight gain, low blood pressure, and blood sugar. Skin color may change slightly. The lack of gonadotropins, however, results in messed up menstrual periods in women, inability to breast feed their babies, may even cause stillbirth, infertility, bone fragility and loss of libido. Men lose muscle mass, pubic, chest and axilar hair (also the hair on their head), have anemia, bone fragility, erectile dysfunctions, as well as low sperm count or even infertility.
If the disease is caused by a brain tumor, it will also affect the optic nerve, potentially resulting in double vision, bitemporal hemianopsy (loss of vision in both outer halfs of both eyes), severe headaches or even dangerous hemorrhaging.
Hormone replacement therapy makes it all good, but long term complications (increased risk of lung diseases, heart attacks) lower life expectancy and the overall quality of life anyway.
There, I actually took the time to write all this down... oh well, won't happen again I hope.
