Dear Friend,
Are you suffering from penis fissure or anal fissure ?
Fissure /cracks on penis can be due to phimosis, dryness and some
STD's whereas anal fissure many a times point out to digestive disorders like indigestion, constipation, hard stools etc.
In both cases, before the problem aggravates, you need urgent medical consultation as you have mentioned about bleeding.
Proper clinical examination will only direct for diagnosis and appropriate medications.
- Varad Sexology Clinic (Pune)