also remember to clean her so that dirt doesn't accumulate.

You should keep the moisturised properly.

usually those areas will be darker to all. Don't worry. it's normal. You can apply castor oil and massage before bath. Give some diaper free time. But use cloth diaper to cover. I agree with Shruti...due to crawling...it appears more darker.

if the skin is dry, moisturise it with a good moisturizing baby cream

it happens if he is crawling...my son's knees look the