what causes pink stretch marks on abdomen area in men
'The most susceptible area for men to get stretch marks when they work out is under the arms, where their upper chest and front shoulder muscles connect. 'This is because when working out, these areas tend to expand more in proportion to the rest of the body.
While it is possible for men to get stretch marks, usually as a result of obesity, there are features about your question that cause me concern. So my first advice is that you should ask your GP to check them for you.