1 The results of prophylactic measures for femoral head AVN have considerable variation, but certain generalizations can safely be stated. 2  Namely, the clinical results of core decompression alone deteriorate with more advanced lesions.
1 Melasma is very common skin ailment. It can occur to anyone, but young women with brownish tone are more likely to contract with it.  The condition is often linked with female hormonal changes. Change in level of estrogen and progesterone may cause melasma.
Melasma causes dark splotchy spots to appear on your face. These spots most commonly appear on your forehead and cheeks and are a result of increased pigmentation. When you become pregnant your body produces more hormones, which causes an increase in pigmentation.