Sangrado de nariz: ¿Por qué ocurre?

#iguru_soc_icon_wrap_6947a03b496ea a{ background: transparent; }#iguru_soc_icon_wrap_6947a03b496ea a:hover{ background: transparent; border-color: #2c8fa0; }#iguru_soc_icon_wrap_6947a03b496ea a{ color: #2c8fa0; }#iguru_soc_icon_wrap_6947a03b496ea a:hover{ color: #ffffff; }.iguru_module_social #soc_icon_6947a03b497151{ color: #ffffff; }.iguru_module_social #soc_icon_6947a03b497151:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6947a03b497151{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6947a03b497151:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6947a03b497252{ color: #ffffff; }.iguru_module_social #soc_icon_6947a03b497252:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6947a03b497252{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6947a03b497252:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6947a03b4972f3{ color: #ffffff; }.iguru_module_social #soc_icon_6947a03b4972f3:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6947a03b4972f3{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6947a03b4972f3:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6947a03b497364{ color: #ffffff; }.iguru_module_social #soc_icon_6947a03b497364:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6947a03b497364{ background: rgba(44,143,160,0.01); }.iguru_module_social #soc_icon_6947a03b497364:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6947a03b4973d5{ color: #ffffff; }.iguru_module_social #soc_icon_6947a03b4973d5:hover{ color: #2c8fa0; }.iguru_module_social #soc_icon_6947a03b4973d5{ background: rgba(44,143,160,0.01); }.iguru_module_social #soc_icon_6947a03b4973d5:hover{ background: rgba(255,255,255,0.01); }