What is causing strange symbol on each line Word?

I opened MS Word 2010 today to find that whenever I add a new line I get strange symbol.

When I press enter multiple times I get one on each line. This is very strange to me and I need to get rid of this. It happened from today itself. I checked for MS Word Replacing Characters with Line Breaks but it of no help.

How can i change this? What may be the possible root cause? Is it because of a crash or something?

Are the characters pilcrows (¶)? If so, you have "show formatting" enabled, and you can disable it with the button that looks like a pilcrow. Instructions: https://support.office.com/en-us/article/Show-or-hide-tab-marks-in-Word-84a53213-5d02-404a-b022-09cae1a3958b

Use Ctrl+* (Ctrl+Shift+8) to toggle this display.