Does fibroid lead to infertility?

It depends. Fibroids sometimes affect fertility. It really depends on how big they are, how many there are, and whether they are distorting or encroaching upon the uterine cavity. Tests such as saline infusion sonograms, hsgs, and rarely mris can help determine if they're a problem or not.
Fibroids. Fibroids, for the most part , is compatible with pregnancy depending on its location. There may be some complications associated with it, though. As a general rule, we try to rule out other possible causes of infertility first before declaring that it is the most likely cause.
Sometimes. If fibroid is near or protrudes into inner uterine cavity; or if it is 4-5 CM or larger and located in the walls of uterus then studies show it may be reduce fertility and you may want to consider removal (myomectomy). Check out this link on hysteroscopic myomectomy: http://www.Womenshealthfremont.Com/hysteroscopic-myomectomy-obgyn-fremont-ca.Htm.
Sometimes. Fibroids can cause infertility by damaging fallopian tubes, by affecting bleeding patterns during menstruation, or by causing inflammation in the uterus that prevents a pregnancy from growing well. Some fibroids are more likely to affect fertility, especially those in the muscle of the uterus or in the uterine cavity. Fibroids larger than 4-5 cm are also more likely to have a negative effect.