What are the caouses of premature ejacualation apart from stress and anxiety tsh normal?

Get the facts: Premature ejaculation is seldom either the result of "stress" (whatever that means) or thyroid disease. Most often it just happens. The key is to manage it. If a dab of a topical anesthetic on your glans or a condom doesn't help you get back into full control, your physician can give a tiny dose of a SSRI and/or you can learn and practice the squeeze technique with your partner -- it's great.