Hello and welcome, Luteinizing hormone (LH) and follicle stimulating hormones (FSH) are secreted in the pituitary gland regulate endogenous (body) testosterone production. In men who just used several months of high dose steroids FSH and LH are supressed which leads to decreased testosterone production and spermatogenesis. After stopping steroid use a person may experience sexual dysfunction, fatigue, infertility, and depression. These are all the signs of testosterone deficiency (a person is not taking steroids and the body is still not producing). Pregnyl (human chorionic gonadotropin) is widely used to stimulate testes to produce testosterone. In many people testosterone levels increases less than 2 month after the medication but the complete recovery of testosterone production may take a year or even longer. Unfortunately in a very few individuals complete recovery may never occur. For now besides treatment with pregnyl you should follow life style changes to naturally booster testosteron level such as alcohol cessation, taking enough sleep, decreasing stress and having healthy food rich in vitamins and minerals. I hope I have answered your question. Please, feel free to ask me more in HCM if there is anything else you need to know. Thank you, Malik Amonov MD