• Your erectile dysfunction started suddenly rather than coming on gradually
• Your erections subside early during sexual contact
• You can achieve self-stimulated erections
• You have spontaneous erections at night or when you wake up in the morning
• You have premature ejaculation
• You're unable to ejaculate
• You have relationship problems
• You have been going through stressful life events
• You have symptoms of a psychological condition such as depression
• You may need to see a specialist