解颅者，头缝开解而颅不合也。书曰∶母虚羸瘦，父虚解颅。是由禀气不足，先天
肾元大亏，肾主脑髓，肾亏则脑气不足，故颅解开。然人无脑髓，犹树无根，不过千
日，则成废人。有以父精不足则解颅，眼白睛多为论者，有以属母之血虚热多而论者，
其候多愁少喜，目白睛多，而 白色。若成于病后者，尤凶，宜久服地黄丸，外用封
囟法可也。亦有因怀胎五月，忽被大风大雨雷电惊胎，以致颅骨开解者。然是症，若至
年长不合，必至骨中蒸热，肉干皮黑，肢体柴瘦，骨节皆露，如鹤之脚，名为鹤膝，又
名鹤节。大宜调补天元，以图万一。
小儿鹤膝，因禀受肾虚血气不充，以致肌肉瘦削，形如鹤膝，外色不变，膝内作
痛，屈伸艰难。若 肿色赤而作脓者，为外因可治。若肿硬色白不作脓者，是属本性难
疗。属外因者，以荆防为主，佐以益气养荣。属本性者，以六味加鹿茸补其精血，仍
须调补脾胃，以助化生之源。
囟填者，囟门肿起也。脾主肌肉。若乳哺不常，饥饱无度，或寒或热，乘于脾家，
致使脏腑不调，其气上冲，为之填胀，囟突而高，如物堆垛，毛发短黄，骨蒸自汗矣。
更有风热伤肝，木郁思达，所以令肿者。更
有肺热生风，肺主皮毛，亦令囟肿毛焦者。更有胎中受热所致者，然寒气上冲而肿者，
牢靳坚硬，热气上冲而肿者，柔软红色。更有外因覆护过暖，阳气不得外出，亦令赤
肿。寒者温之，热者凉之，外用封囟散可也。
解颅，是指头骨缝裂开而头颅不能闭合的病证。古籍记载：母亲身体虚弱消瘦，父亲精气亏虚，都可能导致解颅。这是由于先天禀赋不足，肾元严重亏损所致。肾主司脑髓，肾气亏虚则脑气不足，因此导致颅骨缝隙开裂。然而人如果没有脑髓，就像树木没有根一样，不过千日，就会成为废人。有的医家认为父亲精气不足会导致解颅，并多以眼白睛多作为诊断依据；有的医家认为属于母亲血虚内热所致。其症状表现多为愁闷少喜，眼白睛显露较多，且瞳仁显得发白。如果是因病后形成的，病情尤为凶险，适宜长期服用地黄丸，并配合外用封囟法治疗。也有因怀孕五个月时，突然遭遇大风大雨雷电惊吓胎气，从而导致颅骨开解的。但是这种病症，如果到了年长仍不愈合，必然导致骨髓中蒸腾发热，肌肉干枯，皮肤变黑，肢体柴瘦，骨节全部暴露，形状像鹤的腿脚，命名为鹤膝，又名鹤节。此时非常需要调理补益先天元气，以图挽救万一。
小儿鹤膝，是因为禀受肾虚、血气不充盈，导致肌肉消瘦，外形如同鹤膝，外部颜色没有变化，但膝盖内部疼痛，屈伸困难。如果肿胀处色红且化脓的，属于外因引起，可以治疗。如果肿胀坚硬、色白且不化脓的，属于本性亏损，难以治愈。属于外因的，以荆芥、防风为主药，辅以益气养荣的药物。属于本性亏损的，用六味地黄丸加鹿茸来补益精血，同时必须调理补益脾胃，以助生化之源。
囟填，是指囟门肿起。脾主肌肉。如果哺乳不规律，饥饱无度，或者寒邪热邪侵袭脾脏，致使脏腑功能不调，气机上冲，造成填塞胀满，囟门突起高耸，像物体堆垛一样，伴有毛发短黄、骨蒸盗汗等症状。更有风热损伤肝脏，肝木郁结不得疏达，所以导致囟门肿胀。还有肺热生风，肺主皮毛，也会导致囟门肿胀、毛发焦枯。还有因胎中受热所致的。寒气上冲导致的肿胀，质地牢固坚硬；热气上冲导致的肿胀，质地柔软红色。还有因外部护理过暖，阳气不得外出，也导致赤肿。寒证用温法，热证用凉法，外用封囟散治疗即可。
Jiechu (Splayed Sutures), refers to a condition where the cranial sutures split open and the skull fails to close. Ancient texts state: maternal deficiency and emaciation, or paternal deficiency, can lead to Jiechu. This arises from insufficient congenital endowment and severe depletion of the Kidney Yuan (Primordial Qi). The Kidneys govern the brain marrow; when the Kidneys are deficient, the Qi of the brain is insufficient, causing the cranial sutures to separate. However, without brain marrow, a person is like a tree without roots; within a thousand days, they will become disabled. Some theorists attribute Jiechu to insufficient paternal essence, often citing excessive scleral exposure as a diagnostic sign; others attribute it to maternal blood deficiency with excess heat. Symptoms include frequent melancholy and little joy, prominent sclerae, and a whitish appearance of the pupils. If resulting from post-illness conditions, the prognosis is particularly ominous. It is advisable to take Dihuang Wan (Rehmannia Pill) for an extended period and apply external fontanelle sealing methods. There are also cases caused by sudden fright to the fetus due to strong winds, heavy rain, or lightning during the fifth month of pregnancy, leading to the separation of cranial bones. However, if this condition persists into adulthood without healing, it inevitably leads to steaming heat in the bones, dry muscles, blackened skin, emaciated limbs, and exposed joints, resembling the legs of a crane. This is named He Xi (Crane Knee) or He Jie (Crane Joint). At this stage, it is crucial to regulate and tonify Tian Yuan (Heavenly Primordial Essence) to attempt a cure.
Pediatric Crane Knee results from congenital Kidney deficiency and insufficient Qi and Blood, leading to muscle wasting and a shape resembling a crane's knee. The external color remains unchanged, but there is pain inside the knee, making flexion and extension difficult. If swelling is red and suppurates, it is due to external factors and is treatable. If swelling is hard, white, and does not suppurate, it stems from intrinsic deficiency and is difficult to cure. For external causes, use Jingjie (Schizonepeta) and Fangfeng (Saposhnikovia) as main herbs, assisted by formulas that tonify Qi and nourish Ying (Nutritive Qi). For intrinsic causes, use Liuwei Dihuang Wan (Six-Ingredient Rehmannia Pill) supplemented with Lurong (Deer Antler Velvet) to tonify essence and blood, while simultaneously regulating and tonifying the Spleen and Stomach to aid the source of transformation and generation.
Xitian (Fontanelle Distension) refers to the swelling of the anterior fontanelle. The Spleen governs muscles. Irregular breastfeeding, unregulated hunger and satiety, or invasion by cold or heat pathogens affecting the Spleen, can cause disharmony of the Zang-Fu organs. This leads to rebellious Qi rushing upward, causing distension and fullness, resulting in a protruding, high anterior fontanelle resembling stacked objects, accompanied by short, yellow hair, bone-steaming fever, and spontaneous sweating. Additionally, wind-heat injuring the Liver may cause Liver Wood stagnation and failure to disperse, leading to swelling. Lung heat generating wind may also cause fontanelle swelling and scorched hair, as the Lungs govern the skin and hair. Intrauterine heat retention is another cause. Swelling caused by cold Qi rushing upward is firm and hard; swelling caused by hot Qi rushing upward is soft and red. External over-warming, preventing Yang Qi from dispersing outward, can also cause red swelling. Cold patterns are treated with warming methods, and heat patterns with cooling methods. External application of Fengxin San (Fontanelle Sealing Powder) is appropriate.