tertiary syphilis:

Syphilis develops in three stages; in stage three or tertiary syphilis , 15-20 years after stage two, serious health problems set in, including gummas (large ulcers) that devastate the muscles, liver, lungs , eyes and/or endocrine system, heart diseases , neurosyphilis which effects the brain and spinal cord, blindness, paralysis, psychosis, and even cause death.

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