This is a big mistake because the muscle aren't given a chance to grow. Remember, success doesn't come overnight. Always keep a positive outlook on things and be patient. The longer I'm out of the gym, the bigger I get. You can think of muscle soreness as a good thing.
Muscle soreness is an indication of muscle growth.
If a muscle is sore, do not train that particular muscle until it has fully recovered. It is ok to train muscles other than the sore muscles, just don't train the sore one. When working out, do not favor body parts. This can cause muscular imbalances. For example, having a big upper body and skinny legs is not balance.