👉 Oligonephria is a condition characterized by a deficiency in the production of male hormones, specifically testosterone. It occurs when there are insufficient levels of testosterone in the body. When testosterone is deficient, it can cause a range of symptoms including: 1. Low libido and mood changes 2. Impotence (difficulty achieving or maintaining an erection) 3. Fatigue and weakness 4. Reduced energy levels 5. Increased risk of infections 6. Changes in growth hormone levels Olig