Polygyny or the practice of having more than one wife is legal in India only for Muslims, but National Family Health Survey (NFHS) data shows it is almost as prevalent in other communities, though on the decline in all.

Sex therapy is designed to change certain patterns of sexual behaviour. Masters and Johnson gave new dimension to sex therapy. Today, we are entering into an era of reasoning, so what was once upon a time empirical is now being specific for each and every sexual dysfunction.