Syphilis :- This malady also occur due to illicit relations. The front part of penis develops a wound or an abscess within 15 day of the intercourse, and it begins to have pus or swelling. This disease must be thoroughly treated and the patient should continue taking medicine as long as doctor instructs.
After 5-7 days treatment the patient starts feeling better, but the disease re-occurs after sometime and when it lapses again and again, it really becomes incurable. It also gets transmitted from one person to another, interfere, the couple should not have intercourse until the disease is fully cured.
When the treatment is left out mid-way, its germs are also left in the body resulting in its recurrence. Incomplete treatment affects the yet to be born child also. Many a time this disease prove to be fatal.