painless, but prominent….not too many choices. Chancre of Primary syphilis most likely….see below:
The first sign of syphilis usually appears 2 to 10 weeks following exposure. A red, oval sore, called a chancre (pronounced shanker) develops at the site where the bacteria entered the body. The lesion typically looks clean, is not pus-filled, and is often painless. It may develop into an ulcer that secretes clear mucus when disturbed.Most chancres appear on the penis, anus, and rectum in men, and on the vulva, cervix, and between the vagina and anus (perineum) in women. Less commonly, they form on the lips, hands, or eyes. Sores in the vagina and rectum may go undetected unless seen by a physician. Swelling and hardening of lymph nodes in the inner thighs and groin is also common and may cause tenderness. Lesions usually heal without treatment within 6 weeks.
Please NOTE: the lesion will heal, but the infection that led to is persists and is NOT healed….it may then progress to secondary and tertiary stages. IT is easily and effectively treated and sound serologic tests are available for diagnosis and assessment. Get it taken care of. The lesion is quite contagious.