Dear, Welcome to HCM We understand your concerns I went through your details. Groin sweating can at times be the worst area of the body in which one has to endure sweat. It’s uncomfortable, takes longer to cool off from after an episode, and clothing takes longer to dry in that area. Now, sweating down there is normal. People with hyperhidrosis, however, have to worry about this in every aspect of their lives. It affects everything: sitting on chairs, sitting on other surfaces and worrying about leaving sweat marks behind, clothing choices, potential odor issues, the type of fabric you choose etc. The common causes of groin sweating are Unsuitable and tight clothing, thick pubic hair, hormonal issues, thyroid problems and hygiene. If you can be sure about the clothing and pubic hair issues, I suggest you to consult an urologist. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible. Hope this answers your query. Further clarifications are welcome. Good luck. Take care.