If HR professional wants to change his job frequently, is it Good or not?

If HR professional wants to change his job frequently, is it Good or not? I mean If he/she is looking for Better career oppurtunity along with Salary is advisable to change? Recently one of my friend asked to me to advice on this as she is changing her job for every 2 years. and she has been asked this question by the interviewers at time of interview . Please share your Answers & Advice's.

Change of job should be based on professional and personal needs.
Too many changes will make your CV look bad and give a doubt on to the fact whether person will again jump the ship.
Think of your goals before change of job-Salary is one factor but not the only factor-professional gains in terms of knowledge, new work etc could be important.
Secondly are so many jobs available?
Personally I would not advice frequent job changes.
But then employee has to see his/her objective, long term plans and whether these jumps from job to job are helping her or hindering her.

Dear Sriram,
This is in addition to what Shri Nathrao has said.
If your friend is changing her job every two years then she could be the luckiest person. Getting job in HR is difficult. I have seen HR professionals trying for better opportunity for the years together but in vain. In contrast, if she gets a job without being perceived as job-hopper then it is her good luck.
If your friend has changed her job after every two years and in the interview if she is being asked why she did that then you may tell her that in the interview, she needs to tell the benefits, especially non-financial benefits of the change of her job. Secondly, in what job what she learnt something new or how she could grew because of the change. Lastly if she is able to tell how she could attain her career objectives because of the change of jobs, the better.
Thanks,
Dinesh Divekar

Learned members Mr.Nathrao and Dinesh gave valid inputs on your query. Professional careers are dynamic but not static and job changes are part of this process. I won't comment whether frequent change is good or bad or what is an ideal frequency.What the employers probably look at is whether the trail of changes point to any growth in potential in the candidate in terms of skill and knowledge diversity and whether they added any value to candidate's job profile or whether the changes are of routine nature in the sense of a rolling stone gathering no mass.
B.Saikumar
HR & Labour Relations Adviser