Sustanon is an extremely potent anabolic steroid and should be used only after medical approval. When abused or overdosed, Sustanon can result in health complications like fluid retention, hypertension, nausea, acne, gynecomastia, prostatic disorder, and priapism (prolonged and painful erections). In rare cases, abuse of this steroid can lead to polycythemia, myalgia, pruritus, depression, nervousness, mood disturbances, libido increase, and reduced libido. Indiscriminate abuse of this steroid in the long term may cause depression, hair loss, impotency, testicular atrophy, kidney disorders, heart problems or infertility. Sustanon abuse may even cause reduced sperm count, oily skin, acne, heart damage, fluid retention, shrinking of the testicles, and increased risk for breast and prostate cancer. Female athletes overdosing on Sustanon can experience health complications like virilization, clitoral enlargement, growth and development of male secondary sexual characteristics, and oily skin.