The most likely cause is a nocturnal emission of semen. This usually occurs if there is a need for a release or if you have sexual tension and the body releases semen during your sleep. You may or may not remember having an erotic dream when this occurs.
As for hiding this from your parents I would not worry as it is totally normal. You might try to prevent this from occurring by masturbating prior to going to sleep. Masturbation is safe and actually healthy as it releases pent up sexual tension.
If you have had the talk with you parents and they have told you masturbation is wrong, then they are wrong. One reason for that is; based on a recent survey about 85% of us masturbate. That would include you and your parents. When parents do so it is usually mutual masturbation as foreplay prior to sex.
The reason parents tell you not to is it feels so good. Because it feels so good it is felt you would want the real thing way before your ready. The good thing about masturbation is no one has ever gotten pregnant through masturbation or gotten an STD.
Find someplace quiet, private and comfortable to masturbate where you will not be disturbed. Then let you mid take you where you need to achieve orgasm. See if masturbating before bedtime doesn't help. In any case don't worry or be embarrassed as it is totally normal. [ adviceman49's advice column | Ask adviceman49 A Question ]
Dragonflymagic answered Sunday May 8 2016, 2:48 pm: What you don't say is if the stains are on bed sheets or on the mattress so I'd have to give 2 answers. Whether you are male or female, if there is some kind of white residue on the sheets, it is most likely from the males nocturnal emissions, and it would be dried cum and same goes for girls if they masturbate in bed, however they also have a natural cleansing system for vagina, its self cleaning but that liquid which comes out at times other than ones period are a liquid that dries whitish to pale yellowish and can mess up panties or bed sheet if sleeping nude but with females, its more likely to get blood stains on sheets during period and that takes a special cleaner to get out blood stains.
If you've gone to change your own sheets and have noticed a whitish powdery mark on the mattress, something may have wet the mattress accidently at that spot and some powdery mildew grew there. If thats the case, the parents still need to know to treat the mildrew and kill it. Sleeping with such a thing untreated can over time cause you to have allergy symptoms, trouble breathing or general cold and sinus symptoms that never go away until the problem is taken care of. [ Dragonflymagic's advice column | Ask Dragonflymagic A Question ]
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