1.Masturbation is a normal
way of relieving sexual tension.
2.It is, not harmful if done in moderation, preferably 1-2 times a week.
3.Excess indulgence may cause physical problem like weakness, tiredness, loss of memory, lack of energy, lack of concentration, loss of facial glow and sexual problem like erectile dysfunction,premature ejaculation,testicular pain
, decrease sperm count.etc
for further advice