Hello XXXXXXX
Thanks for the query.

There are varied reasons why your inner groin turns dark. Usually, dark inner groin is the result of wearing tight underwear or clothing. It can also be due to friction and the constant rubbing of the elastic band of your underwear against your inner thighs or skin.
 
Most individuals who are obese and overweight are more likely to suffer from having a dark inner groin than those who are slim. Taking oral contraceptives are also known to cause skin pigmentation and darkening of the inner thighs. Skin infections and certain health conditions  could also lead you to have dark skin.

Another condition, known as Acanthosis Nigricans, can also be attributed to vaginal darkening. This is a condition in which the hormone insulin, which is used for the metabolism of glucose, spills over into the skin. This happens when the insulin production in the body is excessive. The skin tends to have abnormal growths as well as darkening in color due to such kind of a spillover. The skin color may change into dark brown or black due to spillovers of insulin. There are no set patterns of such a spillover. As the insulin spills into the skin, it triggers the melanocytes, the glands which produce melanin, to go into over drive and produce excessive melanin. The skin color, as a result, begins to darken in those areas.you must consult the doctor and get yourself tested for hyperinsulinemia.


There are topical bleaching creams specifically made for dark inner groin but they may have certain chemical ingredients that may be harmful to your skin.


 
On the other hand, there are safe and natural ways to lighten the skin of your inner thighs,hips and area around vagina. 
Prepare a paste made of limejuice, turmeric powder and curd. Apply the paste on your inner groin and vagina leave it to dry then wash it off after a few minutes.
If the cause of your dark inner thigh is obesity, then it is high time for you to reduce your weight not just to whiten your groin but also for important health reasons.
A mixture of lemon and bath oil will also do the trick. Rub the mixture to your inner thighs using your hands for two minutes. Leave the mixture on your skin for 30 minutes before rinsing it off.
Avoid wearing tight underwear to reduce friction on your groin.

You can also opt to drink half a cup of warm milk with half teaspoon of turmeric powder for two months to lighten your inner groin.
I hope to have answered your query however you may revert to me for any further query.
Best of luck.
Thanks

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Hello
I had seen your picture and the natural treatment advised above holds true for black spots on hip also.
Thanks

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