These lumps and bumps are diagnosed via an internal vaginal ultrasound. From a medical stand point, your decision about what to do about it is whether you want to preserve immediate or future fertility. This is because the medical management is excision of the lump, or depending on the number and size, a hysterectomy may be suggested.
From a functional approach, the size and growth of endometrial tissue in your body is controlled by oestrogen. Based on this, incorporating different lifestyle changes and functional supplementation to balance your hormones may help. You can do this by decreasing your emotional stress, decreasing inflammatory foods particularly wheat and dairy, incorporating phyto-oestrogens into your diet (check out this recipe) and possibly integrating a bio-identical progesterone cream (depending on where you live in the world, some of these creams can be purchased online, other countries require a GP referral). We would recommend speaking to a practitioner before introducing any external hormones.