Pseudohypoparathyroidism is a genetic disorder that resembles hypoparathyroidism (lowered levels of parathyroid hormone) but is caused by a lack of response to parathyroid hormone rather than a deficiency in the hormone itself. A picture very similar to hypoparathyroidism develops with hypocalcaemia in the blood and high phophate levels.

This defect also causes short stature, round face and short hand bones and is also called Albright's hereditary osteodystrophy. When Albright's hereditary osteodystrophy occurs without hypocalcemia, it is known as pseudopseudohypoparathyroidism