Although side effects nandrolone relatively small, may occur at high doses conditional androgen side effects. Most problems are reflected in increased blood pressure, increased length of blood clotting, which can lead to frequent nosebleeds and bleeding during long cutting wounds. It may also result in increased production of sebaceous glands and thus acne. Some athletes complain of headaches and excessive sexual stimulation. Due to the prolonged use of very high doses may occur in men suspension of spermatogenesis, which means lower testosterone production in the testes. Like almost all steroids is also suppressed nandrolone causes secretion of gonadotropic hormones from the pituitary. For women at higher doses may appear androgen conditional virilizing symptoms such as deepening of the voice (often irreversible), increased body hair, acne, increase libido and hypertrophy of the clitoris. Since Deca-durabolin showed no negative effects on the liver, may be used in diseases of the liver.