Enhanced Endometrial Thickness and Reduced Fibrosis with AB-Laden HA Hydrogel Injection

However, the group treated with HA/ABs showed a noticeably thicker endometrium and a greater development of endometrial glands (indicated by black arrows in Fig. 3g) compared to the groups treated with NR, ABs, and HA (Fig. 3h and i). Additionally, the presence of light green color (representing collagen) was observed to cover a significantly smaller area in the HA/ABs groups compared to the NR group (Fig. 3g, j), indicating that there was less fibrosis after the injection of AB-laden HA hydrogel.