Arteriographical and phlebographical methods are distinctly suited for the diagnostics of the adrenal glands in the stop program of the combat against hypertension. Hypervascular tumours of the adrenal medulla, especially phaeochromocytomata may be established arteriographically relatively certainly. Avascular processes of the adrenal cortex, however, are better to be diagnosed by the selective phlebography of the adrenal glands. The phlebography is also suited for the planimetric determination of the size. The following uncorrected normal values were established: on the left m1 = 10.58 +/- 1.17 cm2, on the right m2 = 6.95 +/- 1.39 cm2. The mean value of normal couples of adrenal glands is M = 18.17 +/- 1.96 cm2. The left adrenal gland is statistically significantly larger than the right one (p greater than 0.001). In 214 patients altogether 44 selective arteriographies and 276 selective phlebographies of the adrenal glands were performed. As angiographical basis examination of all patients was at first performed an abdominal aortography or an angiography of the kidneys. The phlebographical diagnostics was successful on the left in 98.7% and on the right in 90.4% of the cases. 72 patients had pathological processes of the adrenal glands, out of them 20 times a solitary adenoma of the adrenal glands was present. 38 patients had a one- or double-sided hyperplasia, and 4 patients had a phaeochromocytoma. In 10 other cases more infrequent changes were found.