What to do you have excess smegma on penis.?

you mean smegma I would assume "Sphagnum" is a type of moss and you should definitely not have that under your foreskin.

Smegma on the other hand is a white waxy material that can collect under the foreskin of men or boys that don retract their foreskin and wash the glans and the area behind it on a regular basis.If you feel there is too much there I suggest you get your foreskin retracting easily and wash under there on a regular basis.

MalesSmegma can accumulate on a penis.

In males, smegma helps keep the glans moist and facilitates sexual intercourse by acting as a lubricant.

Smegma is produced from minute microscopic protrusions of the mucosal surface of the foreskin and that living cells constantly grow towards the surface, undergo fatty degeneration, separate off, and form smegma. Smegma contains 26.6% fats and 13.3% proteins, which is judged to be consistent with necrotic epithelial debris. Newly produced smegma has a smooth, moist texture. It is thought to be rich in squalene and contain prostatic and seminal secretions, desquamated epithelial cells, and the mucin content of the urethral glands of Littré. Some state that it contains anti-bacterial enzymes such as lysozyme and hormones such as androsterone.

Little smegma is produced during childhood, although the foreskin may contain sebaceous glands. Smegma increases from adolescence until sexual maturity when the function of smegma for lubrication assumes its full value, and from middle-age production starts to decline and in old age virtually no smegma is produced. Oster reported that the incidence of smegma increased from 1% among 6-7 and 8-9 year olds to 8% among 14-15 and 16-17 year olds (an overall incidence of 5%).

FemalesThe accumulation of sebum combined with dead skin cells forms smegma. Smegma clitoridis is defined as the secretion of the apocrine glands of the clitoris, in combination with desquamating epithelial cells. Glands that are located around the clitoris and the vulva majoris secrete sebum. Contaminated, and retained smegma (smegmaliths) usually disappear when the cause is removed.