It has been shown that under conditions of androgen deficiency increased activity of aldehyde dehydrogenase in liver and heart homogenates of 3-month-old rats. After the effects of stress on the background androgen deficiency observed various changes of aldehyde dehydrogenase activity. They have tissue-specific and age-related character. Only in the heart of 3-month-old castrated rats observed effect of testosterone on aldehyde dehydrogenase induction under stress. Here there is inhibition of enzyme activity under conditions of administration of testosterone.