Libido is conscious or unconscious sexual desire. Loss of libido is a sexual dysfunction relating to loss of sexual desire or sexual drive and is also termed hypoactive sexual desire disorder. Sexual desire or libido is produced by a combination of biological, personal and relationship factors. Sexual desire is different for each person and may change over time depending on what is happening in a person’s life. This can be result of common medical complications, substance abuse, depression, chronic smokers, chronic alcoholics and pharmacological agents.