Poor kidney function is actually not significantly related to hair loss. Even in severe cases of kidney failure or patients with uremia, most still retain their hair. Not all patients with uremia experience hair loss. Thus, there is not much of a connection between kidney function and hair growth. If a patient is experiencing hair loss, it could be due to issues with the skin or scalp itself, such as male pattern baldness which is related to an excess of androgens in the hair follicles, or factors like allergies or fungal infections could also cause hair loss.