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The five most common symptoms in men who have sex with men diagnosed with primary and secondary syphilis
| Symptoms | N | % |
|---|---|---|
| All primary syphilis | 237 | — |
| Symptomatic primary syphilis | 230 | 97·0 |
| Penile lesion | 131 | 57·0 |
| Penile rash | 21 | 9·1 |
| Pain | 18 | 7·8 |
| Anal lesion/sore/blister | 18 | 7·8 |
| Genital sores/ulcers | 17 | 7·4 |
| All secondary syphilis | 211 | — |
| Symptomatic secondary syphilis | 202 | 95·7 |
| Rash | 95 | 47·0 |
| Penile lesion | 31 | 15·3 |
| Penile rash | 24 | 11·9 |
| Anal lesion/sore/blister | 22 | 10·9 |
| Anal pain | 14 | 6·9 |
