There’s a specific skin condition called Acanthosis Nigricans which appears in the crotch region including the legs. When a person is fat, this issue could turn to a serious health disorder.
People who suffer from overweight and have type 2 diabetes, generally suffer from this disorder too, including hormonal imbalance, generic variables and tumor.

How To Lighten The Dark Skin In Your Pubic Area And Between Legs Naturally
The external symptoms can show up around the crotch region and in the pubic region. In these areas the skin begins to change the color to brown, transform between softer and thicker, and additionally may cause discomfort and itching.
There are some natural solutions that can help you to lighten these areas. We are presenting you the following four:

Aloe Vera – can fix the skin cells, and also can bring the skin natural color back. Apply Aloe Vera every day on darker area and wash it off after some time.
Cucumber – rub the darker area and soon you will notice the change.
Lemon – make lemon juice from a fresh lemon, apply it on the area and leave it for about 20 minutes. The vitamin C will return back the natural skin color and it will remove the dead cells.
Baking soda – make a paste from a combination of water and baking soda. Apply the mixture on the affected areas and just leave it to dry. After that rinse it off. For the start repeat this process twice a week, and later you can duplicate it.