Animal testing is a hot button issue with a multitude of opinions on each side. Itâs an industry where there are entire companies dedicated to the breeding of animals used for experimental purposes. You can order whatever sort of beagle, rat, pig or mouse (to mention a few) that your laboratory wants to test on.nimal testing is a hot button issue with a multitude of opinions on each side. Itâs an industry in which there are entire companies dedicated to the breeding of animals used for experimental purposes.
Hormonal imbalance is a common cause of black inner thighs to some women. You can easily tell that the cause is hormonal imbalance if they darken during some stages when there is a lot of hormonal changes such as during your monthly cycles, lactation or pregnancy.
Quick Answer. Inner thigh cramps can be caused by straining or overusing a muscle; deficiencies of dietary minerals such as calcium; insufficient blood circulation in the muscles; and dehydration, according to MedlinePlus. Extended periods of intense exercise and physical labor can cause muscle cramps throughout the body, notes Mayo Clinic.