why is latex making my caption bold?

I don't know why latex开发者_开发问答 is making my captions bold.

\section*{附录}
\begin{figure}[htbp]
\centering
{
   \label{fig:ILOVEYOU}
   \includegraphics[scale=2.7]{ILOVEYOU.jpg}
}
\caption{ILOVEYOU蠕虫邮件}
\end{figure}

I added a figure with a caption earlier and it wasn't bolded. Thank you!

I've found a way to get around it. All I did was add some text after the section and before the first figure. If there isn't text, everything is bold. I realized this later when I noticed that not only the caption was bold but so was the footer. I don't know why it's like this or how to fix it, but adding a few explanatory sentences before my figures works for me.