I have a few spots on face, chest, shoulders and penis. Will it turn cancerous?

Hello,

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Let us first come to face spot. This papules could be angiofibroma or BCC (basal cell carcinoma) or nevi. Angiofibromas are benign growths, and they occur due to the proliferation of blood vessels so that they can bleed rarely. BCC is malignant, but it is rare to get for your age. But as this papule is getting irritated and bled, we must rule out malignant changes. Do not rely on the internet thing, and it is better to get it checked with a dermatologist in person. So dermoscopic examination can be done. Now bumps on shoulders could be dermatofibroma, compound nevi, or angiofibromas. What I am saying is, papules you have could be due to multiple causes. Without proper examination and dermoscopic or biopsy examination, it is difficult to comment and provide a definitive diagnosis. See any papule or growth that should be checked for malignancy if it suddenly starts increasing in size, irritation, or itching or pain occurs when bleeding occurs or sudden color changes. But I would suggest you visit a dermatologist in person and get all these lesions checked, so you do not have to worry about it unnecessarily.