Shift your free hand to the top of your belly and slide it down the side to feel for the baby's back. If that side is smooth and has even resistance to pressure, that's the back. If you can press in further, it's uneven and you feel a lot of movement, that's the front of the baby.
Dark Skin â If you have dark skin (African American or black people) it is not uncommon to have tan or dark lines running down your fingernails or toenails. Thought the possibility for cancer should not be ignored. Fungus â A fungal nail infection can cause discoloration of fingernails and toenails. Toenail fungus can cause the nail to appear dark even black. Often though there will be other shades of yellow and green associated with fungus.
Fungi are capable of producing many colors, and the species that invade nails and cause a discolored toenail are no exception. In laboratory culture, the so-called dermatophytes are predominantly yellow, mahogany brown, or reddish, while saprophytic fungi that invade nails are often green, black or brown, or colorless.ther possible explanations would include a recent blow to the tip of the toe, causing bleeding and blackening under the nail, bacterial growth beneath the nail (often a green color), continuous use of nail polish on the nail, or some other uncommon medical condition. The problem, however, is usually fungus.