Lump on penis

Hi yesterday night a lump magically appeared on my penis shaft.. I'll attach a photo and hopefully somebody can explain to me what it is thanks

Moderator comment:I have deleted the links to the images as they went to a site unsuitable for inclusion in the forums. Users can upload images directly to this site, see below for more info.

https://patient.uservoice.com/knowledgebase/articles/402861-how-do-i-add-an-image-to-my-post

https://patient.uservoice.com/knowledgebase/articles/398390-why-can-t-i-use-formatting-or-add-an-image-to-my-p

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