Spam comments can be extremely annoying and frustrating. Luckily, there is an awesome plugin that comes with most WordPress installations called "Akismet". It will be in WordPress > Plugins. Once you find it do the following (If you don't have it, just click "Add New" then search for it and install it):
- Activate it.
- Click the prompt at the top of your blog that reads "Akismet is almost ready. You must enter your Akisment API key for it to work."
- Click "What is this?" next to where it asks you to put in an API key.
- You should now be on the Akisment.com website. Follow the instructions to get an API key.
- Return to your blog and go to Plugins > Akismet Configuration and input your new API key.
- All done! No more spam comments!