When I’m dehydrated, my pee sometimes smells different than it normally does, but I unfortunately don’t have any experience with the smell you’re describing. I’ll defer to our health expert Molly for the meaning of down there smells and scents (including decidual and implantation blood). I’m super curious about the answer.
Technically speaking, period blood has no odor. The blood can start to smell a bit when it mixes with air and bacteria starts to develop. To my knowledge, decidual or implantation bleeding is no different (be sure to check Molly’s answer to see what she has to say about that). What I do know is this – our bodies each have their own patterns and responses. You’ve noticed something different this month and are rightly asking about it. Typically, a foul odor is an indication that there might be an issue. Unless you’re using a new product such as a scented pad, I’m not sure what could cause a sweet smell. If there’s no product that could explain the smell, ask your healthcare professional about it.
What determines how sweet or sour your period smells isn’t the blood itself but rather the vaginal mucus there at the time. At different points in your cycle, your vaginal mucus changes in consistency (from watery, thin mucus to thicker, whiter mucus) and when this change occurs, the pH of the mucus changes too. This change in the acidity of the mucus also changes its smell and taste. I suspect that this time your period is happening at the same time your vaginal mucus is shifting into the preovulation mode and getting thinner and more watery. It gets sweeter at this time too. Sometimes your period happens before the hormones of the next cycle have ramped up enough to cause this change but this month it sounds like both are happening at the same time. Decidual blood and implantation blood are usually light in flow and therefore browner and more tart smelling by the time they make it out -- since they would happen in the second half of the cycle when the pH makes the mucus more acidic and tart rather than sweet. Hope this helps!
This is not intended to be medical advice. Everybody is different so please make sure to consult your physician if you're having issues. Do not delay or refrain from seeking professional medical advice from your physician because of something you have read on this site.
No matter what time of the month it is, U by Kotex® has something that's right for you.
Allnighter® Ultra-Thin Pads with Wings, Extra Heavy Overnight
U by Kotex® Allnighter® Ultra Thin Extra Heavy Overnight Pads with Wings provide up to 100% leak free protection and have an 80% larger back* for all night protection in any sleep position.
Security® Ultra-Thin Pads with Wings, Overnight
For all night protection in any sleep position, try U by Kotex® Security® Ultra Thin Overnight Pads with a 60% larger back*.
Teen® Ultra-Thin Pads with Wings, Overnight Protection
Get up to 100% leak free protection with U by Kotex® Ultra Thin Teen Overnight Pads with Wings.
Teen® Pads - Extra Absorbency
Check out these smaller-sized pad with heavy-flow absorbency. U by Kotex Teen® Pads are totally perfect for your younger girls learning the ropes and have vibrant colors with cool patterns.
Cleanwear® Ultra Thin Pads - Heavy Flow With Wings
Say hello to your new favorite pad for heavy flow days. U by Kotex® Cleanwear® Pads feature Xpress DRI® Core for crazy, fast absorption to help stop leaks.
Click® Tampons Super - Compact Applicator
Go from compact to full-sized protection in one quick move with U by Kotex® Click® Tampons. Perfect for travel and pocket-sized, to go where U go!
Security® Ultra Thin Pads - Long with Wings
This super-thin pad has some crazy fast absorption that you can trust. And with its added length and uniquely shaped wings. It'll keep you comfortable while helping stop leaks dead their in tracks.