She sounds very troubled and confused. This is an essay she wrote about her 'transition'.
www.thecut.com/2018/01/writer-and-artist-akwaeke-emezi-gender-transition-and-ogbanje.html
She seems to totally believe in ogbanjes and all the other Nigerian spiritual beliefs. She wanted a hysterectomy because she believes she is an ogbanje and:
it’s important for an ogbanje never to reproduce: if it did, it would contribute to the lineage, and when it died, its spirit would join those of the humans, participating in their reincarnation loop.
Removing a uterus is an efficient way to make sure this never happens.
She went to the doctor with severe pelvic pains and:
It took the entire afternoon to run tests; then he called me into his office to tell me there was an 84 percent chance I had endometriosis. “We could put you on birth control,” he suggested. I refused.
“I’m trans,” I explained. “And I’ve had a breast reduction, so hormones would reverse that.”
The doctor nodded while my stomach churned. “I’ve had a few trans patients,” he said. “We could do a hysterectomy, if that’s something you’d want. Your insurance would cover it.”
So endometriosis - no hysterectomy, despite extreme pain, because she might change her mind about not wanting children. Say the magic trans word, and she can have a hysterectomy - obviously no possibility of her changing her mind about that 
The whole essay is a fascinating insight into what happens when African traditions and superstitions meet western navel gazing.