Is it obligatory to inform one's fiancée about sexual problems such as premature ejaculation, and is marriage in this case considered a sin?

Sexual problems that some may experience before marriage fall into two categories: those that must be disclosed if they affect marital life and the fundamental purposes of marriage, such as enjoyment and procreation, or if they are incurable diseases such as syphilis, gonorrhea, AIDS, and infertility. The category that does not require disclosure is that which does not affect marital life and does not negate a fundamental purpose of marriage, and can be cured with treatment, such as premature ejaculation, which resolves over time with a doctor's consultation. It is recommended to consult a specialist doctor to clarify the nature of the problem and the extent of its impact on marriage and its rights.