Does redirecting a web page decreases the web page rank?

[pavani25]

Does redirecting a web page decreases the web page rank? Generally redirecting a web page means guiding an existing (which has good rank in search engine) to new web page. How does it works?

[jayam]

Redirects are not bad for SEO, but — as with so many things — only if you put them in place correctly. A bad implementation might cause all kinds of trouble, from loss of PageRank to loss of traffic. Redirecting pages is a must if you make any changes to your URLs