Table 3. Rheumatoid arthritis and male fertility.

Author	Year	Study Population	Results	Conclusion
Gordon et al. (21)	1986	31 patients with RA, 33 with AS patients and 95 normal controls	Low testosterone / Elevated FSH and LH level in patients with RA	Normal pituitary-gonad axis function / Testicular damage by disease activity
Shiraishi et al. (17)	2008	32 men with RA, 14 with BD, 8 with SLE and 80 healthy controls	3% RA patients had ASA	RA may induce ASA in patients and may affect fertility

Note: RA = rheumathoid arthritis; AS = ankylosing spondylitis; BD = Behçet disease; FSH = follicle-stimulating hormone; LH = luteinizing hormone; SLE = systemic lupus erythematosus; ASA = antisperm antibody.