Nobody's perfect -- and neither is their skin. Imperfections come in the form of sunspots, freckles, red blotchy areas and countless others. So why do these imperfections show themselves? The usual cause is too much  sun  exposure, but other things may affect it as well. Skin can become discolored as a result of hormonal imbalances. If you're on birth control or pregnant, you might notice that your skin tone seems to change from day to day [source:  Austin ]. As skin is our largest organ, it also happens to be the most exposed. Lucky for us, there are a few tricks we can use to try and even the tone out. It may be tempting to spend the day basking in the sun. After all, who doesn't love a good tan? Unfortunately, this is a dangerous practice, and people who don't protect themselves from the sun's harmful ultraviolet rays are at a much greater risk of developing skin cancer. There are much safer ways to even out your skin tone than chasing the perf...