Thank you. They are stretch marks from a Chrons bowel occlusion. The dark spot was an area of necrosis from an ingrown hair or spider bite.
Hello,
One of the possibilities for these long lines can be stretch marks. Stretch marks can appear when there is rapid stretching of the skin.It is common in rapid gaining or losing of weight,pregnancy,puberty,cushings syndrome and overuse of steroids.
Get them examined from your dermatologist to confirm the diagnosis.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.